Home / 279,984.06-386,368.38-159,123.24

Finding the Fourth Proportional to 279,984.06, 386,368.38 and 159,123.24

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Solution

The fourth proportional to 279,984.06, 386,368.38 and 159,123.24 is: 219,584.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,984.06 : 386,368.38 = 159,123.24 : x
  2. Step 2: Convert to fraction form
    279,984.06/386,368.38 = 159,123.24/x
  3. Step 3: Cross multiply
    279,984.06x = 386,368.38 × 159,123.24
  4. Step 4: Simplify right side
    279,984.06x = 61,480,188,459.15
  5. Step 5: Solve for x
    x = 61,480,188,459.15/279,984.06
  6. Step 6: Final answer
    x = 219,584.60

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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.