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Finding the Fourth Proportional to 243,488.87, 336,013.91 and 136,059.01

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Solution

The fourth proportional to 243,488.87, 336,013.91 and 136,059.01 is: 187,761.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,488.87 : 336,013.91 = 136,059.01 : x
  2. Step 2: Convert to fraction form
    243,488.87/336,013.91 = 136,059.01/x
  3. Step 3: Cross multiply
    243,488.87x = 336,013.91 × 136,059.01
  4. Step 4: Simplify right side
    243,488.87x = 45,717,717,580.46
  5. Step 5: Solve for x
    x = 45,717,717,580.46/243,488.87
  6. Step 6: Final answer
    x = 187,761.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.