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Finding the Fourth Proportional to 545,100.68, 817,780.42 and 171,123.68

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Solution

The fourth proportional to 545,100.68, 817,780.42 and 171,123.68 is: 256,726.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,100.68 : 817,780.42 = 171,123.68 : x
  2. Step 2: Convert to fraction form
    545,100.68/817,780.42 = 171,123.68/x
  3. Step 3: Cross multiply
    545,100.68x = 817,780.42 × 171,123.68
  4. Step 4: Simplify right side
    545,100.68x = 139,941,591,598.12
  5. Step 5: Solve for x
    x = 139,941,591,598.12/545,100.68
  6. Step 6: Final answer
    x = 256,726.14

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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.