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Finding the Fourth Proportional to 332,238.80, 498,358.20 and 319,116.80

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Solution

The fourth proportional to 332,238.80, 498,358.20 and 319,116.80 is: 478,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,238.80 : 498,358.20 = 319,116.80 : x
  2. Step 2: Convert to fraction form
    332,238.80/498,358.20 = 319,116.80/x
  3. Step 3: Cross multiply
    332,238.80x = 498,358.20 × 319,116.80
  4. Step 4: Simplify right side
    332,238.80x = 159,034,474,037.76
  5. Step 5: Solve for x
    x = 159,034,474,037.76/332,238.80
  6. Step 6: Final answer
    x = 478,675.20

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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.