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Finding the Fourth Proportional to 330,694.16, 495,988.11 and 90,752.00

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Solution

The fourth proportional to 330,694.16, 495,988.11 and 90,752.00 is: 136,113.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,694.16 : 495,988.11 = 90,752.00 : x
  2. Step 2: Convert to fraction form
    330,694.16/495,988.11 = 90,752.00/x
  3. Step 3: Cross multiply
    330,694.16x = 495,988.11 × 90,752.00
  4. Step 4: Simplify right side
    330,694.16x = 45,011,910,478.78
  5. Step 5: Solve for x
    x = 45,011,910,478.78/330,694.16
  6. Step 6: Final answer
    x = 136,113.41

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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.