Home / 279,958.08-386,346.33-152,635.80

Finding the Fourth Proportional to 279,958.08, 386,346.33 and 152,635.80

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Solution

The fourth proportional to 279,958.08, 386,346.33 and 152,635.80 is: 210,639.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,958.08 : 386,346.33 = 152,635.80 : x
  2. Step 2: Convert to fraction form
    279,958.08/386,346.33 = 152,635.80/x
  3. Step 3: Cross multiply
    279,958.08x = 386,346.33 × 152,635.80
  4. Step 4: Simplify right side
    279,958.08x = 58,970,281,156.61
  5. Step 5: Solve for x
    x = 58,970,281,156.61/279,958.08
  6. Step 6: Final answer
    x = 210,639.68

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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.