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Finding the Fourth Proportional to 515,807.20, 773,710.80 and 160,818.40

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Solution

The fourth proportional to 515,807.20, 773,710.80 and 160,818.40 is: 241,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,807.20 : 773,710.80 = 160,818.40 : x
  2. Step 2: Convert to fraction form
    515,807.20/773,710.80 = 160,818.40/x
  3. Step 3: Cross multiply
    515,807.20x = 773,710.80 × 160,818.40
  4. Step 4: Simplify right side
    515,807.20x = 124,426,932,918.72
  5. Step 5: Solve for x
    x = 124,426,932,918.72/515,807.20
  6. Step 6: Final answer
    x = 241,227.60

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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.