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Finding the Fourth Proportional to 400,657.28, 552,901.92 and 230,907.20

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Solution

The fourth proportional to 400,657.28, 552,901.92 and 230,907.20 is: 318,648.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,657.28 : 552,901.92 = 230,907.20 : x
  2. Step 2: Convert to fraction form
    400,657.28/552,901.92 = 230,907.20/x
  3. Step 3: Cross multiply
    400,657.28x = 552,901.92 × 230,907.20
  4. Step 4: Simplify right side
    400,657.28x = 127,669,034,221.82
  5. Step 5: Solve for x
    x = 127,669,034,221.82/400,657.28
  6. Step 6: Final answer
    x = 318,648.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.