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Finding the Fourth Proportional to 400,392.33, 552,541.47 and 219,104.30

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Solution

The fourth proportional to 400,392.33, 552,541.47 and 219,104.30 is: 302,363.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,392.33 : 552,541.47 = 219,104.30 : x
  2. Step 2: Convert to fraction form
    400,392.33/552,541.47 = 219,104.30/x
  3. Step 3: Cross multiply
    400,392.33x = 552,541.47 × 219,104.30
  4. Step 4: Simplify right side
    400,392.33x = 121,064,213,386.68
  5. Step 5: Solve for x
    x = 121,064,213,386.68/400,392.33
  6. Step 6: Final answer
    x = 302,363.97

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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.