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Finding the Fourth Proportional to 318,354.27, 439,391.28 and 182,479.20

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Solution

The fourth proportional to 318,354.27, 439,391.28 and 182,479.20 is: 251,857.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,354.27 : 439,391.28 = 182,479.20 : x
  2. Step 2: Convert to fraction form
    318,354.27/439,391.28 = 182,479.20/x
  3. Step 3: Cross multiply
    318,354.27x = 439,391.28 × 182,479.20
  4. Step 4: Simplify right side
    318,354.27x = 80,179,772,005.32
  5. Step 5: Solve for x
    x = 80,179,772,005.32/318,354.27
  6. Step 6: Final answer
    x = 251,857.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.