Home / 318,299.14-439,244.85-173,103.20

Finding the Fourth Proportional to 318,299.14, 439,244.85 and 173,103.20

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Solution

The fourth proportional to 318,299.14, 439,244.85 and 173,103.20 is: 238,878.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,299.14 : 439,244.85 = 173,103.20 : x
  2. Step 2: Convert to fraction form
    318,299.14/439,244.85 = 173,103.20/x
  3. Step 3: Cross multiply
    318,299.14x = 439,244.85 × 173,103.20
  4. Step 4: Simplify right side
    318,299.14x = 76,034,689,118.52
  5. Step 5: Solve for x
    x = 76,034,689,118.52/318,299.14
  6. Step 6: Final answer
    x = 238,878.09

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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.