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Finding the Fourth Proportional to 280,959.27, 421,496.51 and 93,972.39

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Solution

The fourth proportional to 280,959.27, 421,496.51 and 93,972.39 is: 140,977.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,959.27 : 421,496.51 = 93,972.39 : x
  2. Step 2: Convert to fraction form
    280,959.27/421,496.51 = 93,972.39/x
  3. Step 3: Cross multiply
    280,959.27x = 421,496.51 × 93,972.39
  4. Step 4: Simplify right side
    280,959.27x = 39,609,033,951.50
  5. Step 5: Solve for x
    x = 39,609,033,951.50/280,959.27
  6. Step 6: Final answer
    x = 140,977.85

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1.5x scale

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.