Home / 279,257.54-385,377.08-151,934.04

Finding the Fourth Proportional to 279,257.54, 385,377.08 and 151,934.04

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Solution

The fourth proportional to 279,257.54, 385,377.08 and 151,934.04 is: 209,669.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,257.54 : 385,377.08 = 151,934.04 : x
  2. Step 2: Convert to fraction form
    279,257.54/385,377.08 = 151,934.04/x
  3. Step 3: Cross multiply
    279,257.54x = 385,377.08 × 151,934.04
  4. Step 4: Simplify right side
    279,257.54x = 58,551,895,928.13
  5. Step 5: Solve for x
    x = 58,551,895,928.13/279,257.54
  6. Step 6: Final answer
    x = 209,669.89

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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.