Home / 205,787.64-307,839.36-155,493.88

Finding the Fourth Proportional to 205,787.64, 307,839.36 and 155,493.88

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Solution

The fourth proportional to 205,787.64, 307,839.36 and 155,493.88 is: 232,604.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,787.64 : 307,839.36 = 155,493.88 : x
  2. Step 2: Convert to fraction form
    205,787.64/307,839.36 = 155,493.88/x
  3. Step 3: Cross multiply
    205,787.64x = 307,839.36 × 155,493.88
  4. Step 4: Simplify right side
    205,787.64x = 47,867,136,503.12
  5. Step 5: Solve for x
    x = 47,867,136,503.12/205,787.64
  6. Step 6: Final answer
    x = 232,604.53

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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.