Home / 279,961.45-386,330.14-159,085.96

Finding the Fourth Proportional to 279,961.45, 386,330.14 and 159,085.96

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Solution

The fourth proportional to 279,961.45, 386,330.14 and 159,085.96 is: 219,529.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,961.45 : 386,330.14 = 159,085.96 : x
  2. Step 2: Convert to fraction form
    279,961.45/386,330.14 = 159,085.96/x
  3. Step 3: Cross multiply
    279,961.45x = 386,330.14 × 159,085.96
  4. Step 4: Simplify right side
    279,961.45x = 61,459,699,835.29
  5. Step 5: Solve for x
    x = 61,459,699,835.29/279,961.45
  6. Step 6: Final answer
    x = 219,529.15

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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.