Home / 397,142.27-548,061.87-215,854.14

Finding the Fourth Proportional to 397,142.27, 548,061.87 and 215,854.14

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Solution

The fourth proportional to 397,142.27, 548,061.87 and 215,854.14 is: 297,881.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,142.27 : 548,061.87 = 215,854.14 : x
  2. Step 2: Convert to fraction form
    397,142.27/548,061.87 = 215,854.14/x
  3. Step 3: Cross multiply
    397,142.27x = 548,061.87 × 215,854.14
  4. Step 4: Simplify right side
    397,142.27x = 118,301,423,615.64
  5. Step 5: Solve for x
    x = 118,301,423,615.64/397,142.27
  6. Step 6: Final answer
    x = 297,881.73

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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.