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Finding the Fourth Proportional to 290,375.04, 435,564.78 and 80,024.52

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Solution

The fourth proportional to 290,375.04, 435,564.78 and 80,024.52 is: 120,037.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,375.04 : 435,564.78 = 80,024.52 : x
  2. Step 2: Convert to fraction form
    290,375.04/435,564.78 = 80,024.52/x
  3. Step 3: Cross multiply
    290,375.04x = 435,564.78 × 80,024.52
  4. Step 4: Simplify right side
    290,375.04x = 34,855,862,448.41
  5. Step 5: Solve for x
    x = 34,855,862,448.41/290,375.04
  6. Step 6: Final answer
    x = 120,037.39

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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.