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Finding the Fourth Proportional to 310,689.52, 428,747.48 and 174,723.44

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Solution

The fourth proportional to 310,689.52, 428,747.48 and 174,723.44 is: 241,116.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,689.52 : 428,747.48 = 174,723.44 : x
  2. Step 2: Convert to fraction form
    310,689.52/428,747.48 = 174,723.44/x
  3. Step 3: Cross multiply
    310,689.52x = 428,747.48 × 174,723.44
  4. Step 4: Simplify right side
    310,689.52x = 74,912,234,596.93
  5. Step 5: Solve for x
    x = 74,912,234,596.93/310,689.52
  6. Step 6: Final answer
    x = 241,116.07

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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.