Home / 257,787.40-386,822.04-100,022.08

Finding the Fourth Proportional to 257,787.40, 386,822.04 and 100,022.08

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Solution

The fourth proportional to 257,787.40, 386,822.04 and 100,022.08 is: 150,087.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,787.40 : 386,822.04 = 100,022.08 : x
  2. Step 2: Convert to fraction form
    257,787.40/386,822.04 = 100,022.08/x
  3. Step 3: Cross multiply
    257,787.40x = 386,822.04 × 100,022.08
  4. Step 4: Simplify right side
    257,787.40x = 38,690,745,030.64
  5. Step 5: Solve for x
    x = 38,690,745,030.64/257,787.40
  6. Step 6: Final answer
    x = 150,087.81

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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.