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Finding the Fourth Proportional to 572,470.40, 858,705.60 and 151,788.80

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Solution

The fourth proportional to 572,470.40, 858,705.60 and 151,788.80 is: 227,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,470.40 : 858,705.60 = 151,788.80 : x
  2. Step 2: Convert to fraction form
    572,470.40/858,705.60 = 151,788.80/x
  3. Step 3: Cross multiply
    572,470.40x = 858,705.60 × 151,788.80
  4. Step 4: Simplify right side
    572,470.40x = 130,341,892,577.28
  5. Step 5: Solve for x
    x = 130,341,892,577.28/572,470.40
  6. Step 6: Final answer
    x = 227,683.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.