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Finding the Fourth Proportional to 442,471.18, 610,662.68 and 251,513.28

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Solution

The fourth proportional to 442,471.18, 610,662.68 and 251,513.28 is: 347,118.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,471.18 : 610,662.68 = 251,513.28 : x
  2. Step 2: Convert to fraction form
    442,471.18/610,662.68 = 251,513.28/x
  3. Step 3: Cross multiply
    442,471.18x = 610,662.68 × 251,513.28
  4. Step 4: Simplify right side
    442,471.18x = 153,589,773,620.39
  5. Step 5: Solve for x
    x = 153,589,773,620.39/442,471.18
  6. Step 6: Final answer
    x = 347,118.14

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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.