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Finding the Fourth Proportional to 313,630.80, 470,251.80 and 180,445.20

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Solution

The fourth proportional to 313,630.80, 470,251.80 and 180,445.20 is: 270,555.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,630.80 : 470,251.80 = 180,445.20 : x
  2. Step 2: Convert to fraction form
    313,630.80/470,251.80 = 180,445.20/x
  3. Step 3: Cross multiply
    313,630.80x = 470,251.80 × 180,445.20
  4. Step 4: Simplify right side
    313,630.80x = 84,854,680,101.36
  5. Step 5: Solve for x
    x = 84,854,680,101.36/313,630.80
  6. Step 6: Final answer
    x = 270,555.95

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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.