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Finding the Fourth Proportional to 391,452.42, 540,195.54 and 228,098.82

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Solution

The fourth proportional to 391,452.42, 540,195.54 and 228,098.82 is: 314,771.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,452.42 : 540,195.54 = 228,098.82 : x
  2. Step 2: Convert to fraction form
    391,452.42/540,195.54 = 228,098.82/x
  3. Step 3: Cross multiply
    391,452.42x = 540,195.54 × 228,098.82
  4. Step 4: Simplify right side
    391,452.42x = 123,217,965,243.26
  5. Step 5: Solve for x
    x = 123,217,965,243.26/391,452.42
  6. Step 6: Final answer
    x = 314,771.24

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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.