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Finding the Fourth Proportional to 221,050.59, 331,625.70 and 80,808

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Solution

The fourth proportional to 221,050.59, 331,625.70 and 80,808 is: 121,230.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,050.59 : 331,625.70 = 80,808 : x
  2. Step 2: Convert to fraction form
    221,050.59/331,625.70 = 80,808/x
  3. Step 3: Cross multiply
    221,050.59x = 331,625.70 × 80,808
  4. Step 4: Simplify right side
    221,050.59x = 26,798,009,565.60
  5. Step 5: Solve for x
    x = 26,798,009,565.60/221,050.59
  6. Step 6: Final answer
    x = 121,230.21

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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.