Home / 256,972.17-385,236.59-123,669.03

Finding the Fourth Proportional to 256,972.17, 385,236.59 and 123,669.03

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Solution

The fourth proportional to 256,972.17, 385,236.59 and 123,669.03 is: 185,396.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,972.17 : 385,236.59 = 123,669.03 : x
  2. Step 2: Convert to fraction form
    256,972.17/385,236.59 = 123,669.03/x
  3. Step 3: Cross multiply
    256,972.17x = 385,236.59 × 123,669.03
  4. Step 4: Simplify right side
    256,972.17x = 47,641,834,787.46
  5. Step 5: Solve for x
    x = 47,641,834,787.46/256,972.17
  6. Step 6: Final answer
    x = 185,396.87

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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.