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Finding the Fourth Proportional to 318,774.83, 439,895.03 and 182,711.21

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Solution

The fourth proportional to 318,774.83, 439,895.03 and 182,711.21 is: 252,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,774.83 : 439,895.03 = 182,711.21 : x
  2. Step 2: Convert to fraction form
    318,774.83/439,895.03 = 182,711.21/x
  3. Step 3: Cross multiply
    318,774.83x = 439,895.03 × 182,711.21
  4. Step 4: Simplify right side
    318,774.83x = 80,373,750,091.26
  5. Step 5: Solve for x
    x = 80,373,750,091.26/318,774.83
  6. Step 6: Final answer
    x = 252,133.30

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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.