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Finding the Fourth Proportional to 400,371.32, 552,519.42 and 219,099.32

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Solution

The fourth proportional to 400,371.32, 552,519.42 and 219,099.32 is: 302,360.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,371.32 : 552,519.42 = 219,099.32 : x
  2. Step 2: Convert to fraction form
    400,371.32/552,519.42 = 219,099.32/x
  3. Step 3: Cross multiply
    400,371.32x = 552,519.42 × 219,099.32
  4. Step 4: Simplify right side
    400,371.32x = 121,056,629,208.79
  5. Step 5: Solve for x
    x = 121,056,629,208.79/400,371.32
  6. Step 6: Final answer
    x = 302,360.89

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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.