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Finding the Fourth Proportional to 299,079.20, 448,464.90 and 88,689.80

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Solution

The fourth proportional to 299,079.20, 448,464.90 and 88,689.80 is: 132,989.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,079.20 : 448,464.90 = 88,689.80 : x
  2. Step 2: Convert to fraction form
    299,079.20/448,464.90 = 88,689.80/x
  3. Step 3: Cross multiply
    299,079.20x = 448,464.90 × 88,689.80
  4. Step 4: Simplify right side
    299,079.20x = 39,774,262,288.02
  5. Step 5: Solve for x
    x = 39,774,262,288.02/299,079.20
  6. Step 6: Final answer
    x = 132,989.06

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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.