Home / 318,160.14-439,063.83-172,966.20

Finding the Fourth Proportional to 318,160.14, 439,063.83 and 172,966.20

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Solution

The fourth proportional to 318,160.14, 439,063.83 and 172,966.20 is: 238,694.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,160.14 : 439,063.83 = 172,966.20 : x
  2. Step 2: Convert to fraction form
    318,160.14/439,063.83 = 172,966.20/x
  3. Step 3: Cross multiply
    318,160.14x = 439,063.83 × 172,966.20
  4. Step 4: Simplify right side
    318,160.14x = 75,943,202,232.55
  5. Step 5: Solve for x
    x = 75,943,202,232.55/318,160.14
  6. Step 6: Final answer
    x = 238,694.90

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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.