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Finding the Fourth Proportional to 239,238.92, 358,793.54 and 120,978.92

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Solution

The fourth proportional to 239,238.92, 358,793.54 and 120,978.92 is: 181,435.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,238.92 : 358,793.54 = 120,978.92 : x
  2. Step 2: Convert to fraction form
    239,238.92/358,793.54 = 120,978.92/x
  3. Step 3: Cross multiply
    239,238.92x = 358,793.54 × 120,978.92
  4. Step 4: Simplify right side
    239,238.92x = 43,406,454,972.18
  5. Step 5: Solve for x
    x = 43,406,454,972.18/239,238.92
  6. Step 6: Final answer
    x = 181,435.59

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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.