Home / 280,920.83-421,439.57-93,927.47

Finding the Fourth Proportional to 280,920.83, 421,439.57 and 93,927.47

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Solution

The fourth proportional to 280,920.83, 421,439.57 and 93,927.47 is: 140,910.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,920.83 : 421,439.57 = 93,927.47 : x
  2. Step 2: Convert to fraction form
    280,920.83/421,439.57 = 93,927.47/x
  3. Step 3: Cross multiply
    280,920.83x = 421,439.57 × 93,927.47
  4. Step 4: Simplify right side
    280,920.83x = 39,584,752,098.35
  5. Step 5: Solve for x
    x = 39,584,752,098.35/280,920.83
  6. Step 6: Final answer
    x = 140,910.70

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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.