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Finding the Fourth Proportional to 611,750.80, 917,626.20 and 162,470.80

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Solution

The fourth proportional to 611,750.80, 917,626.20 and 162,470.80 is: 243,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,750.80 : 917,626.20 = 162,470.80 : x
  2. Step 2: Convert to fraction form
    611,750.80/917,626.20 = 162,470.80/x
  3. Step 3: Cross multiply
    611,750.80x = 917,626.20 × 162,470.80
  4. Step 4: Simplify right side
    611,750.80x = 149,087,462,814.96
  5. Step 5: Solve for x
    x = 149,087,462,814.96/611,750.80
  6. Step 6: Final answer
    x = 243,706.20

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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.