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Finding the Fourth Proportional to 557,601.86, 836,419.20 and 136,877.78

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Solution

The fourth proportional to 557,601.86, 836,419.20 and 136,877.78 is: 205,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,601.86 : 836,419.20 = 136,877.78 : x
  2. Step 2: Convert to fraction form
    557,601.86/836,419.20 = 136,877.78/x
  3. Step 3: Cross multiply
    557,601.86x = 836,419.20 × 136,877.78
  4. Step 4: Simplify right side
    557,601.86x = 114,487,203,245.38
  5. Step 5: Solve for x
    x = 114,487,203,245.38/557,601.86
  6. Step 6: Final answer
    x = 205,320.70

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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.