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Finding the Fourth Proportional to 545,785.74, 818,678.61 and 166,691.16

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Solution

The fourth proportional to 545,785.74, 818,678.61 and 166,691.16 is: 250,036.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,785.74 : 818,678.61 = 166,691.16 : x
  2. Step 2: Convert to fraction form
    545,785.74/818,678.61 = 166,691.16/x
  3. Step 3: Cross multiply
    545,785.74x = 818,678.61 × 166,691.16
  4. Step 4: Simplify right side
    545,785.74x = 136,466,487,168.09
  5. Step 5: Solve for x
    x = 136,466,487,168.09/545,785.74
  6. Step 6: Final answer
    x = 250,036.74

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Similar ratio
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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.