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Finding the Fourth Proportional to 299,086.20, 448,499.70 and 121,534.20

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Solution

The fourth proportional to 299,086.20, 448,499.70 and 121,534.20 is: 182,248.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,086.20 : 448,499.70 = 121,534.20 : x
  2. Step 2: Convert to fraction form
    299,086.20/448,499.70 = 121,534.20/x
  3. Step 3: Cross multiply
    299,086.20x = 448,499.70 × 121,534.20
  4. Step 4: Simplify right side
    299,086.20x = 54,508,052,239.74
  5. Step 5: Solve for x
    x = 54,508,052,239.74/299,086.20
  6. Step 6: Final answer
    x = 182,248.64

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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.