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Finding the Fourth Proportional to 227,649.60, 341,755.20 and 143,409.60

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Solution

The fourth proportional to 227,649.60, 341,755.20 and 143,409.60 is: 215,291.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,649.60 : 341,755.20 = 143,409.60 : x
  2. Step 2: Convert to fraction form
    227,649.60/341,755.20 = 143,409.60/x
  3. Step 3: Cross multiply
    227,649.60x = 341,755.20 × 143,409.60
  4. Step 4: Simplify right side
    227,649.60x = 49,010,976,529.92
  5. Step 5: Solve for x
    x = 49,010,976,529.92/227,649.60
  6. Step 6: Final answer
    x = 215,291.29

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1.5x scale

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.