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Finding the Fourth Proportional to 400,452.72, 552,617.29 and 219,160.97

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Solution

The fourth proportional to 400,452.72, 552,617.29 and 219,160.97 is: 302,438.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,452.72 : 552,617.29 = 219,160.97 : x
  2. Step 2: Convert to fraction form
    400,452.72/552,617.29 = 219,160.97/x
  3. Step 3: Cross multiply
    400,452.72x = 552,617.29 × 219,160.97
  4. Step 4: Simplify right side
    400,452.72x = 121,112,141,315.17
  5. Step 5: Solve for x
    x = 121,112,141,315.17/400,452.72
  6. Step 6: Final answer
    x = 302,438.05

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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.