Home / 388,631.93-582,909.62-135,865.76

Finding the Fourth Proportional to 388,631.93, 582,909.62 and 135,865.76

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Solution

The fourth proportional to 388,631.93, 582,909.62 and 135,865.76 is: 203,785.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,631.93 : 582,909.62 = 135,865.76 : x
  2. Step 2: Convert to fraction form
    388,631.93/582,909.62 = 135,865.76/x
  3. Step 3: Cross multiply
    388,631.93x = 582,909.62 × 135,865.76
  4. Step 4: Simplify right side
    388,631.93x = 79,197,454,938.73
  5. Step 5: Solve for x
    x = 79,197,454,938.73/388,631.93
  6. Step 6: Final answer
    x = 203,785.25

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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.