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Finding the Fourth Proportional to 557,608.88, 836,429.72 and 136,884.75

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Solution

The fourth proportional to 557,608.88, 836,429.72 and 136,884.75 is: 205,331.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,608.88 : 836,429.72 = 136,884.75 : x
  2. Step 2: Convert to fraction form
    557,608.88/836,429.72 = 136,884.75/x
  3. Step 3: Cross multiply
    557,608.88x = 836,429.72 × 136,884.75
  4. Step 4: Simplify right side
    557,608.88x = 114,494,472,430.35
  5. Step 5: Solve for x
    x = 114,494,472,430.35/557,608.88
  6. Step 6: Final answer
    x = 205,331.15

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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.