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Finding the Fourth Proportional to 397,225.58, 548,174.87 and 215,937.86

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Solution

The fourth proportional to 397,225.58, 548,174.87 and 215,937.86 is: 297,996.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,225.58 : 548,174.87 = 215,937.86 : x
  2. Step 2: Convert to fraction form
    397,225.58/548,174.87 = 215,937.86/x
  3. Step 3: Cross multiply
    397,225.58x = 548,174.87 × 215,937.86
  4. Step 4: Simplify right side
    397,225.58x = 118,371,707,253.89
  5. Step 5: Solve for x
    x = 118,371,707,253.89/397,225.58
  6. Step 6: Final answer
    x = 297,996.18

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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.