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Finding the Fourth Proportional to 318,308.80, 439,244.72 and 182,343.28

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Solution

The fourth proportional to 318,308.80, 439,244.72 and 182,343.28 is: 251,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,308.80 : 439,244.72 = 182,343.28 : x
  2. Step 2: Convert to fraction form
    318,308.80/439,244.72 = 182,343.28/x
  3. Step 3: Cross multiply
    318,308.80x = 439,244.72 × 182,343.28
  4. Step 4: Simplify right side
    318,308.80x = 80,093,322,967.48
  5. Step 5: Solve for x
    x = 80,093,322,967.48/318,308.80
  6. Step 6: Final answer
    x = 251,621.45

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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.