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Finding the Fourth Proportional to 290,204.83, 435,103.12 and 112,562.11

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Solution

The fourth proportional to 290,204.83, 435,103.12 and 112,562.11 is: 168,763.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,204.83 : 435,103.12 = 112,562.11 : x
  2. Step 2: Convert to fraction form
    290,204.83/435,103.12 = 112,562.11/x
  3. Step 3: Cross multiply
    290,204.83x = 435,103.12 × 112,562.11
  4. Step 4: Simplify right side
    290,204.83x = 48,976,125,254.78
  5. Step 5: Solve for x
    x = 48,976,125,254.78/290,204.83
  6. Step 6: Final answer
    x = 168,763.99

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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.