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Finding the Fourth Proportional to 318,488.62, 439,464.06 and 182,496.40

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Solution

The fourth proportional to 318,488.62, 439,464.06 and 182,496.40 is: 251,816.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,488.62 : 439,464.06 = 182,496.40 : x
  2. Step 2: Convert to fraction form
    318,488.62/439,464.06 = 182,496.40/x
  3. Step 3: Cross multiply
    318,488.62x = 439,464.06 × 182,496.40
  4. Step 4: Simplify right side
    318,488.62x = 80,200,608,879.38
  5. Step 5: Solve for x
    x = 80,200,608,879.38/318,488.62
  6. Step 6: Final answer
    x = 251,816.25

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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.