Home / 238,516.11-357,838.70-80,744.58

Finding the Fourth Proportional to 238,516.11, 357,838.70 and 80,744.58

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Solution

The fourth proportional to 238,516.11, 357,838.70 and 80,744.58 is: 121,138.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,516.11 : 357,838.70 = 80,744.58 : x
  2. Step 2: Convert to fraction form
    238,516.11/357,838.70 = 80,744.58/x
  3. Step 3: Cross multiply
    238,516.11x = 357,838.70 × 80,744.58
  4. Step 4: Simplify right side
    238,516.11x = 28,893,535,135.52
  5. Step 5: Solve for x
    x = 28,893,535,135.52/238,516.11
  6. Step 6: Final answer
    x = 121,138.72

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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.