Home / 318,288.20-439,246.14-173,103.80

Finding the Fourth Proportional to 318,288.20, 439,246.14 and 173,103.80

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Solution

The fourth proportional to 318,288.20, 439,246.14 and 173,103.80 is: 238,887.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,288.20 : 439,246.14 = 173,103.80 : x
  2. Step 2: Convert to fraction form
    318,288.20/439,246.14 = 173,103.80/x
  3. Step 3: Cross multiply
    318,288.20x = 439,246.14 × 173,103.80
  4. Step 4: Simplify right side
    318,288.20x = 76,035,175,969.33
  5. Step 5: Solve for x
    x = 76,035,175,969.33/318,288.20
  6. Step 6: Final answer
    x = 238,887.83

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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.