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Finding the Fourth Proportional to 400,435.92, 552,594.15 and 219,144.15

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Solution

The fourth proportional to 400,435.92, 552,594.15 and 219,144.15 is: 302,414.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,435.92 : 552,594.15 = 219,144.15 : x
  2. Step 2: Convert to fraction form
    400,435.92/552,594.15 = 219,144.15/x
  3. Step 3: Cross multiply
    400,435.92x = 552,594.15 × 219,144.15
  4. Step 4: Simplify right side
    400,435.92x = 121,097,775,296.72
  5. Step 5: Solve for x
    x = 121,097,775,296.72/400,435.92
  6. Step 6: Final answer
    x = 302,414.87

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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.