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Finding the Fourth Proportional to 479,195.68, 718,717.26 and 159,321

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Solution

The fourth proportional to 479,195.68, 718,717.26 and 159,321 is: 238,956.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,195.68 : 718,717.26 = 159,321 : x
  2. Step 2: Convert to fraction form
    479,195.68/718,717.26 = 159,321/x
  3. Step 3: Cross multiply
    479,195.68x = 718,717.26 × 159,321
  4. Step 4: Simplify right side
    479,195.68x = 114,506,752,580.46
  5. Step 5: Solve for x
    x = 114,506,752,580.46/479,195.68
  6. Step 6: Final answer
    x = 238,956.15

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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.