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Finding the Fourth Proportional to 572,081.80, 858,122.70 and 145,616.80

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Solution

The fourth proportional to 572,081.80, 858,122.70 and 145,616.80 is: 218,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,081.80 : 858,122.70 = 145,616.80 : x
  2. Step 2: Convert to fraction form
    572,081.80/858,122.70 = 145,616.80/x
  3. Step 3: Cross multiply
    572,081.80x = 858,122.70 × 145,616.80
  4. Step 4: Simplify right side
    572,081.80x = 124,957,081,581.36
  5. Step 5: Solve for x
    x = 124,957,081,581.36/572,081.80
  6. Step 6: Final answer
    x = 218,425.20

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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.