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Finding the Fourth Proportional to 720,151.66, 1,080,227.85 and 187,671.34

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Solution

The fourth proportional to 720,151.66, 1,080,227.85 and 187,671.34 is: 281,507.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,151.66 : 1,080,227.85 = 187,671.34 : x
  2. Step 2: Convert to fraction form
    720,151.66/1,080,227.85 = 187,671.34/x
  3. Step 3: Cross multiply
    720,151.66x = 1,080,227.85 × 187,671.34
  4. Step 4: Simplify right side
    720,151.66x = 202,727,808,114.82
  5. Step 5: Solve for x
    x = 202,727,808,114.82/720,151.66
  6. Step 6: Final answer
    x = 281,507.10

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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.