Home / 280,891.20-421,335.84-93,902.40

Finding the Fourth Proportional to 280,891.20, 421,335.84 and 93,902.40

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Solution

The fourth proportional to 280,891.20, 421,335.84 and 93,902.40 is: 140,853.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,891.20 : 421,335.84 = 93,902.40 : x
  2. Step 2: Convert to fraction form
    280,891.20/421,335.84 = 93,902.40/x
  3. Step 3: Cross multiply
    280,891.20x = 421,335.84 × 93,902.40
  4. Step 4: Simplify right side
    280,891.20x = 39,564,446,582.02
  5. Step 5: Solve for x
    x = 39,564,446,582.02/280,891.20
  6. Step 6: Final answer
    x = 140,853.28

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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.