Home / 279,987.06-386,372.52-159,126.24

Finding the Fourth Proportional to 279,987.06, 386,372.52 and 159,126.24

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Solution

The fourth proportional to 279,987.06, 386,372.52 and 159,126.24 is: 219,588.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,987.06 : 386,372.52 = 159,126.24 : x
  2. Step 2: Convert to fraction form
    279,987.06/386,372.52 = 159,126.24/x
  3. Step 3: Cross multiply
    279,987.06x = 386,372.52 × 159,126.24
  4. Step 4: Simplify right side
    279,987.06x = 61,482,006,346.92
  5. Step 5: Solve for x
    x = 61,482,006,346.92/279,987.06
  6. Step 6: Final answer
    x = 219,588.74

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1.5x scale

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.