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Finding the Fourth Proportional to 318,293.80, 439,224.06 and 182,328.28

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Solution

The fourth proportional to 318,293.80, 439,224.06 and 182,328.28 is: 251,600.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,293.80 : 439,224.06 = 182,328.28 : x
  2. Step 2: Convert to fraction form
    318,293.80/439,224.06 = 182,328.28/x
  3. Step 3: Cross multiply
    318,293.80x = 439,224.06 × 182,328.28
  4. Step 4: Simplify right side
    318,293.80x = 80,082,967,394.42
  5. Step 5: Solve for x
    x = 80,082,967,394.42/318,293.80
  6. Step 6: Final answer
    x = 251,600.78

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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.