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Finding the Fourth Proportional to 318,342.38, 439,374.87 and 182,467.40

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Solution

The fourth proportional to 318,342.38, 439,374.87 and 182,467.40 is: 251,840.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,342.38 : 439,374.87 = 182,467.40 : x
  2. Step 2: Convert to fraction form
    318,342.38/439,374.87 = 182,467.40/x
  3. Step 3: Cross multiply
    318,342.38x = 439,374.87 × 182,467.40
  4. Step 4: Simplify right side
    318,342.38x = 80,171,587,957.36
  5. Step 5: Solve for x
    x = 80,171,587,957.36/318,342.38
  6. Step 6: Final answer
    x = 251,840.77

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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.