Home / 207,758.30-311,637.45-172,328.90

Finding the Fourth Proportional to 207,758.30, 311,637.45 and 172,328.90

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Solution

The fourth proportional to 207,758.30, 311,637.45 and 172,328.90 is: 258,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,758.30 : 311,637.45 = 172,328.90 : x
  2. Step 2: Convert to fraction form
    207,758.30/311,637.45 = 172,328.90/x
  3. Step 3: Cross multiply
    207,758.30x = 311,637.45 × 172,328.90
  4. Step 4: Simplify right side
    207,758.30x = 53,704,138,957.31
  5. Step 5: Solve for x
    x = 53,704,138,957.31/207,758.30
  6. Step 6: Final answer
    x = 258,493.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.