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Finding the Fourth Proportional to 225,951.77, 338,927.54 and 85,710.39

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Solution

The fourth proportional to 225,951.77, 338,927.54 and 85,710.39 is: 128,565.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,951.77 : 338,927.54 = 85,710.39 : x
  2. Step 2: Convert to fraction form
    225,951.77/338,927.54 = 85,710.39/x
  3. Step 3: Cross multiply
    225,951.77x = 338,927.54 × 85,710.39
  4. Step 4: Simplify right side
    225,951.77x = 29,049,611,206.59
  5. Step 5: Solve for x
    x = 29,049,611,206.59/225,951.77
  6. Step 6: Final answer
    x = 128,565.54

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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.