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Finding the Fourth Proportional to 218,755.50, 301,849.79 and 123,260.15

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Solution

The fourth proportional to 218,755.50, 301,849.79 and 123,260.15 is: 170,080.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,755.50 : 301,849.79 = 123,260.15 : x
  2. Step 2: Convert to fraction form
    218,755.50/301,849.79 = 123,260.15/x
  3. Step 3: Cross multiply
    218,755.50x = 301,849.79 × 123,260.15
  4. Step 4: Simplify right side
    218,755.50x = 37,206,048,267.32
  5. Step 5: Solve for x
    x = 37,206,048,267.32/218,755.50
  6. Step 6: Final answer
    x = 170,080.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.