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Finding the Fourth Proportional to 239,432.80, 359,098.80 and 120,992.80

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Solution

The fourth proportional to 239,432.80, 359,098.80 and 120,992.80 is: 181,463.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,432.80 : 359,098.80 = 120,992.80 : x
  2. Step 2: Convert to fraction form
    239,432.80/359,098.80 = 120,992.80/x
  3. Step 3: Cross multiply
    239,432.80x = 359,098.80 × 120,992.80
  4. Step 4: Simplify right side
    239,432.80x = 43,448,369,288.64
  5. Step 5: Solve for x
    x = 43,448,369,288.64/239,432.80
  6. Step 6: Final answer
    x = 181,463.73

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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.