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Finding the Fourth Proportional to 472,950.80, 709,426.20 and 220,230.80

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Solution

The fourth proportional to 472,950.80, 709,426.20 and 220,230.80 is: 330,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,950.80 : 709,426.20 = 220,230.80 : x
  2. Step 2: Convert to fraction form
    472,950.80/709,426.20 = 220,230.80/x
  3. Step 3: Cross multiply
    472,950.80x = 709,426.20 × 220,230.80
  4. Step 4: Simplify right side
    472,950.80x = 156,237,499,566.96
  5. Step 5: Solve for x
    x = 156,237,499,566.96/472,950.80
  6. Step 6: Final answer
    x = 330,346.20

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Similar ratio
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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.