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Finding the Fourth Proportional to 318,411.42, 439,411.41 and 182,442.66

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Solution

The fourth proportional to 318,411.42, 439,411.41 and 182,442.66 is: 251,772.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,411.42 : 439,411.41 = 182,442.66 : x
  2. Step 2: Convert to fraction form
    318,411.42/439,411.41 = 182,442.66/x
  3. Step 3: Cross multiply
    318,411.42x = 439,411.41 × 182,442.66
  4. Step 4: Simplify right side
    318,411.42x = 80,167,386,474.75
  5. Step 5: Solve for x
    x = 80,167,386,474.75/318,411.42
  6. Step 6: Final answer
    x = 251,772.96

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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.