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Finding the Fourth Proportional to 318,311.80, 439,248.86 and 182,346.28

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Solution

The fourth proportional to 318,311.80, 439,248.86 and 182,346.28 is: 251,625.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,311.80 : 439,248.86 = 182,346.28 : x
  2. Step 2: Convert to fraction form
    318,311.80/439,248.86 = 182,346.28/x
  3. Step 3: Cross multiply
    318,311.80x = 439,248.86 × 182,346.28
  4. Step 4: Simplify right side
    318,311.80x = 80,095,395,615.24
  5. Step 5: Solve for x
    x = 80,095,395,615.24/318,311.80
  6. Step 6: Final answer
    x = 251,625.59

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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.