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Finding the Fourth Proportional to 400,754.20, 552,906.54 and 230,984.68

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Solution

The fourth proportional to 400,754.20, 552,906.54 and 230,984.68 is: 318,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,754.20 : 552,906.54 = 230,984.68 : x
  2. Step 2: Convert to fraction form
    400,754.20/552,906.54 = 230,984.68/x
  3. Step 3: Cross multiply
    400,754.20x = 552,906.54 × 230,984.68
  4. Step 4: Simplify right side
    400,754.20x = 127,712,940,211.81
  5. Step 5: Solve for x
    x = 127,712,940,211.81/400,754.20
  6. Step 6: Final answer
    x = 318,681.48

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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.