Home / 397,724.85-548,860.38-218,876.85

Finding the Fourth Proportional to 397,724.85, 548,860.38 and 218,876.85

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Solution

The fourth proportional to 397,724.85, 548,860.38 and 218,876.85 is: 302,050.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,724.85 : 548,860.38 = 218,876.85 : x
  2. Step 2: Convert to fraction form
    397,724.85/548,860.38 = 218,876.85/x
  3. Step 3: Cross multiply
    397,724.85x = 548,860.38 × 218,876.85
  4. Step 4: Simplify right side
    397,724.85x = 120,132,827,225.52
  5. Step 5: Solve for x
    x = 120,132,827,225.52/397,724.85
  6. Step 6: Final answer
    x = 302,050.10

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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.