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Finding the Fourth Proportional to 661,728.40, 992,592.60 and 163,092.40

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Solution

The fourth proportional to 661,728.40, 992,592.60 and 163,092.40 is: 244,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,728.40 : 992,592.60 = 163,092.40 : x
  2. Step 2: Convert to fraction form
    661,728.40/992,592.60 = 163,092.40/x
  3. Step 3: Cross multiply
    661,728.40x = 992,592.60 × 163,092.40
  4. Step 4: Simplify right side
    661,728.40x = 161,884,309,356.24
  5. Step 5: Solve for x
    x = 161,884,309,356.24/661,728.40
  6. Step 6: Final answer
    x = 244,638.60

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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.