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Finding the Fourth Proportional to 479,194.68, 718,715.76 and 159,320

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Solution

The fourth proportional to 479,194.68, 718,715.76 and 159,320 is: 238,954.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,194.68 : 718,715.76 = 159,320 : x
  2. Step 2: Convert to fraction form
    479,194.68/718,715.76 = 159,320/x
  3. Step 3: Cross multiply
    479,194.68x = 718,715.76 × 159,320
  4. Step 4: Simplify right side
    479,194.68x = 114,505,794,883.20
  5. Step 5: Solve for x
    x = 114,505,794,883.20/479,194.68
  6. Step 6: Final answer
    x = 238,954.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.