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Finding the Fourth Proportional to 522,781.76, 784,128.72 and 167,699.36

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Solution

The fourth proportional to 522,781.76, 784,128.72 and 167,699.36 is: 251,534.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,781.76 : 784,128.72 = 167,699.36 : x
  2. Step 2: Convert to fraction form
    522,781.76/784,128.72 = 167,699.36/x
  3. Step 3: Cross multiply
    522,781.76x = 784,128.72 × 167,699.36
  4. Step 4: Simplify right side
    522,781.76x = 131,497,884,501.62
  5. Step 5: Solve for x
    x = 131,497,884,501.62/522,781.76
  6. Step 6: Final answer
    x = 251,534.95

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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.