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Finding the Fourth Proportional to 155,269.82, 232,673.90 and 80,289.90

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Solution

The fourth proportional to 155,269.82, 232,673.90 and 80,289.90 is: 120,315.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,269.82 : 232,673.90 = 80,289.90 : x
  2. Step 2: Convert to fraction form
    155,269.82/232,673.90 = 80,289.90/x
  3. Step 3: Cross multiply
    155,269.82x = 232,673.90 × 80,289.90
  4. Step 4: Simplify right side
    155,269.82x = 18,681,363,570.92
  5. Step 5: Solve for x
    x = 18,681,363,570.92/155,269.82
  6. Step 6: Final answer
    x = 120,315.48

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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.