Home / 283,177.62-390,787.88-155,856.15

Finding the Fourth Proportional to 283,177.62, 390,787.88 and 155,856.15

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Solution

The fourth proportional to 283,177.62, 390,787.88 and 155,856.15 is: 215,083.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,177.62 : 390,787.88 = 155,856.15 : x
  2. Step 2: Convert to fraction form
    283,177.62/390,787.88 = 155,856.15/x
  3. Step 3: Cross multiply
    283,177.62x = 390,787.88 × 155,856.15
  4. Step 4: Simplify right side
    283,177.62x = 60,906,694,443.46
  5. Step 5: Solve for x
    x = 60,906,694,443.46/283,177.62
  6. Step 6: Final answer
    x = 215,083.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.