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Finding the Fourth Proportional to 160,309.80, 240,486.48 and 66,793.68

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Solution

The fourth proportional to 160,309.80, 240,486.48 and 66,793.68 is: 100,199.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,309.80 : 240,486.48 = 66,793.68 : x
  2. Step 2: Convert to fraction form
    160,309.80/240,486.48 = 66,793.68/x
  3. Step 3: Cross multiply
    160,309.80x = 240,486.48 × 66,793.68
  4. Step 4: Simplify right side
    160,309.80x = 16,062,976,989.45
  5. Step 5: Solve for x
    x = 16,062,976,989.45/160,309.80
  6. Step 6: Final answer
    x = 100,199.59

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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.