Home / 399,232.18-550,941.66-255,992.80

Finding the Fourth Proportional to 399,232.18, 550,941.66 and 255,992.80

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Solution

The fourth proportional to 399,232.18, 550,941.66 and 255,992.80 is: 353,270.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,232.18 : 550,941.66 = 255,992.80 : x
  2. Step 2: Convert to fraction form
    399,232.18/550,941.66 = 255,992.80/x
  3. Step 3: Cross multiply
    399,232.18x = 550,941.66 × 255,992.80
  4. Step 4: Simplify right side
    399,232.18x = 141,037,098,180.05
  5. Step 5: Solve for x
    x = 141,037,098,180.05/399,232.18
  6. Step 6: Final answer
    x = 353,270.87

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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.