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Finding the Fourth Proportional to 269,573.95, 404,291.70 and 79,989.47

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Solution

The fourth proportional to 269,573.95, 404,291.70 and 79,989.47 is: 119,963.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,573.95 : 404,291.70 = 79,989.47 : x
  2. Step 2: Convert to fraction form
    269,573.95/404,291.70 = 79,989.47/x
  3. Step 3: Cross multiply
    269,573.95x = 404,291.70 × 79,989.47
  4. Step 4: Simplify right side
    269,573.95x = 32,339,078,808.40
  5. Step 5: Solve for x
    x = 32,339,078,808.40/269,573.95
  6. Step 6: Final answer
    x = 119,963.66

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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.