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Finding the Fourth Proportional to 460,243.92, 690,365.88 and 144,728.40

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Solution

The fourth proportional to 460,243.92, 690,365.88 and 144,728.40 is: 217,092.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,243.92 : 690,365.88 = 144,728.40 : x
  2. Step 2: Convert to fraction form
    460,243.92/690,365.88 = 144,728.40/x
  3. Step 3: Cross multiply
    460,243.92x = 690,365.88 × 144,728.40
  4. Step 4: Simplify right side
    460,243.92x = 99,915,549,226.99
  5. Step 5: Solve for x
    x = 99,915,549,226.99/460,243.92
  6. Step 6: Final answer
    x = 217,092.60

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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.