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Finding the Fourth Proportional to 299,107.70, 448,507.65 and 88,718.30

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Solution

The fourth proportional to 299,107.70, 448,507.65 and 88,718.30 is: 133,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,107.70 : 448,507.65 = 88,718.30 : x
  2. Step 2: Convert to fraction form
    299,107.70/448,507.65 = 88,718.30/x
  3. Step 3: Cross multiply
    299,107.70x = 448,507.65 × 88,718.30
  4. Step 4: Simplify right side
    299,107.70x = 39,790,836,245.00
  5. Step 5: Solve for x
    x = 39,790,836,245.00/299,107.70
  6. Step 6: Final answer
    x = 133,031.80

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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.