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Finding the Fourth Proportional to 330,650.88, 495,989.28 and 172,772.16

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Solution

The fourth proportional to 330,650.88, 495,989.28 and 172,772.16 is: 259,165.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,650.88 : 495,989.28 = 172,772.16 : x
  2. Step 2: Convert to fraction form
    330,650.88/495,989.28 = 172,772.16/x
  3. Step 3: Cross multiply
    330,650.88x = 495,989.28 × 172,772.16
  4. Step 4: Simplify right side
    330,650.88x = 85,693,139,242.44
  5. Step 5: Solve for x
    x = 85,693,139,242.44/330,650.88
  6. Step 6: Final answer
    x = 259,165.01

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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.