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Finding the Fourth Proportional to 205,562.55, 308,301.45 and 79,159.41

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Solution

The fourth proportional to 205,562.55, 308,301.45 and 79,159.41 is: 118,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,562.55 : 308,301.45 = 79,159.41 : x
  2. Step 2: Convert to fraction form
    205,562.55/308,301.45 = 79,159.41/x
  3. Step 3: Cross multiply
    205,562.55x = 308,301.45 × 79,159.41
  4. Step 4: Simplify right side
    205,562.55x = 24,404,960,884.14
  5. Step 5: Solve for x
    x = 24,404,960,884.14/205,562.55
  6. Step 6: Final answer
    x = 118,722.80

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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.