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Finding the Fourth Proportional to 303,974.06, 455,987.82 and 79,332.71

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Solution

The fourth proportional to 303,974.06, 455,987.82 and 79,332.71 is: 119,006.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,974.06 : 455,987.82 = 79,332.71 : x
  2. Step 2: Convert to fraction form
    303,974.06/455,987.82 = 79,332.71/x
  3. Step 3: Cross multiply
    303,974.06x = 455,987.82 × 79,332.71
  4. Step 4: Simplify right side
    303,974.06x = 36,174,749,487.59
  5. Step 5: Solve for x
    x = 36,174,749,487.59/303,974.06
  6. Step 6: Final answer
    x = 119,006.04

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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.