Home / 372,125.15-513,517.20-210,991.10

Finding the Fourth Proportional to 372,125.15, 513,517.20 and 210,991.10

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Solution

The fourth proportional to 372,125.15, 513,517.20 and 210,991.10 is: 291,158.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,125.15 : 513,517.20 = 210,991.10 : x
  2. Step 2: Convert to fraction form
    372,125.15/513,517.20 = 210,991.10/x
  3. Step 3: Cross multiply
    372,125.15x = 513,517.20 × 210,991.10
  4. Step 4: Simplify right side
    372,125.15x = 108,347,556,329.33
  5. Step 5: Solve for x
    x = 108,347,556,329.33/372,125.15
  6. Step 6: Final answer
    x = 291,158.92

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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.