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Finding the Fourth Proportional to 354,693.08, 489,257.98 and 252,751.48

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Solution

The fourth proportional to 354,693.08, 489,257.98 and 252,751.48 is: 348,641.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,693.08 : 489,257.98 = 252,751.48 : x
  2. Step 2: Convert to fraction form
    354,693.08/489,257.98 = 252,751.48/x
  3. Step 3: Cross multiply
    354,693.08x = 489,257.98 × 252,751.48
  4. Step 4: Simplify right side
    354,693.08x = 123,660,676,100.52
  5. Step 5: Solve for x
    x = 123,660,676,100.52/354,693.08
  6. Step 6: Final answer
    x = 348,641.36

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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.