Home / 279,606.28-385,861.07-152,281.78

Finding the Fourth Proportional to 279,606.28, 385,861.07 and 152,281.78

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Solution

The fourth proportional to 279,606.28, 385,861.07 and 152,281.78 is: 210,151.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,606.28 : 385,861.07 = 152,281.78 : x
  2. Step 2: Convert to fraction form
    279,606.28/385,861.07 = 152,281.78/x
  3. Step 3: Cross multiply
    279,606.28x = 385,861.07 × 152,281.78
  4. Step 4: Simplify right side
    279,606.28x = 58,759,610,572.30
  5. Step 5: Solve for x
    x = 58,759,610,572.30/279,606.28
  6. Step 6: Final answer
    x = 210,151.25

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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.