Home / 397,149.27-548,069.63-215,861.61

Finding the Fourth Proportional to 397,149.27, 548,069.63 and 215,861.61

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Solution

The fourth proportional to 397,149.27, 548,069.63 and 215,861.61 is: 297,891.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,149.27 : 548,069.63 = 215,861.61 : x
  2. Step 2: Convert to fraction form
    397,149.27/548,069.63 = 215,861.61/x
  3. Step 3: Cross multiply
    397,149.27x = 548,069.63 × 215,861.61
  4. Step 4: Simplify right side
    397,149.27x = 118,307,193,699.86
  5. Step 5: Solve for x
    x = 118,307,193,699.86/397,149.27
  6. Step 6: Final answer
    x = 297,891.00

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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.