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Finding the Fourth Proportional to 239,290.74, 358,825.95 and 81,476.82

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Solution

The fourth proportional to 239,290.74, 358,825.95 and 81,476.82 is: 122,177.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,290.74 : 358,825.95 = 81,476.82 : x
  2. Step 2: Convert to fraction form
    239,290.74/358,825.95 = 81,476.82/x
  3. Step 3: Cross multiply
    239,290.74x = 358,825.95 × 81,476.82
  4. Step 4: Simplify right side
    239,290.74x = 29,235,997,339.48
  5. Step 5: Solve for x
    x = 29,235,997,339.48/239,290.74
  6. Step 6: Final answer
    x = 122,177.72

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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.