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Finding the Fourth Proportional to 313,127.60, 469,716.72 and 88,489.84

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Solution

The fourth proportional to 313,127.60, 469,716.72 and 88,489.84 is: 132,741.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,127.60 : 469,716.72 = 88,489.84 : x
  2. Step 2: Convert to fraction form
    313,127.60/469,716.72 = 88,489.84/x
  3. Step 3: Cross multiply
    313,127.60x = 469,716.72 × 88,489.84
  4. Step 4: Simplify right side
    313,127.60x = 41,565,157,398.12
  5. Step 5: Solve for x
    x = 41,565,157,398.12/313,127.60
  6. Step 6: Final answer
    x = 132,741.92

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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.