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Finding the Fourth Proportional to 303,876.97, 455,815.80 and 79,237.22

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Solution

The fourth proportional to 303,876.97, 455,815.80 and 79,237.22 is: 118,855.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,876.97 : 455,815.80 = 79,237.22 : x
  2. Step 2: Convert to fraction form
    303,876.97/455,815.80 = 79,237.22/x
  3. Step 3: Cross multiply
    303,876.97x = 455,815.80 × 79,237.22
  4. Step 4: Simplify right side
    303,876.97x = 36,117,574,545.00
  5. Step 5: Solve for x
    x = 36,117,574,545.00/303,876.97
  6. Step 6: Final answer
    x = 118,855.91

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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.