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Finding the Fourth Proportional to 279,262.83, 418,894.27 and 129,483.41

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Solution

The fourth proportional to 279,262.83, 418,894.27 and 129,483.41 is: 194,225.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,262.83 : 418,894.27 = 129,483.41 : x
  2. Step 2: Convert to fraction form
    279,262.83/418,894.27 = 129,483.41/x
  3. Step 3: Cross multiply
    279,262.83x = 418,894.27 × 129,483.41
  4. Step 4: Simplify right side
    279,262.83x = 54,239,859,232.59
  5. Step 5: Solve for x
    x = 54,239,859,232.59/279,262.83
  6. Step 6: Final answer
    x = 194,225.13

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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.