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Finding the Fourth Proportional to 322,999.46, 484,499.34 and 145,298.90

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Solution

The fourth proportional to 322,999.46, 484,499.34 and 145,298.90 is: 217,948.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,999.46 : 484,499.34 = 145,298.90 : x
  2. Step 2: Convert to fraction form
    322,999.46/484,499.34 = 145,298.90/x
  3. Step 3: Cross multiply
    322,999.46x = 484,499.34 × 145,298.90
  4. Step 4: Simplify right side
    322,999.46x = 70,397,221,152.73
  5. Step 5: Solve for x
    x = 70,397,221,152.73/322,999.46
  6. Step 6: Final answer
    x = 217,948.42

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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.