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Finding the Fourth Proportional to 462,442.75, 638,171 and 250,474.75

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Solution

The fourth proportional to 462,442.75, 638,171 and 250,474.75 is: 345,655.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,442.75 : 638,171 = 250,474.75 : x
  2. Step 2: Convert to fraction form
    462,442.75/638,171 = 250,474.75/x
  3. Step 3: Cross multiply
    462,442.75x = 638,171 × 250,474.75
  4. Step 4: Simplify right side
    462,442.75x = 159,845,721,682.25
  5. Step 5: Solve for x
    x = 159,845,721,682.25/462,442.75
  6. Step 6: Final answer
    x = 345,655.16

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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.