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Finding the Fourth Proportional to 354,444.92, 489,143.24 and 193,306.76

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Solution

The fourth proportional to 354,444.92, 489,143.24 and 193,306.76 is: 266,768.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,444.92 : 489,143.24 = 193,306.76 : x
  2. Step 2: Convert to fraction form
    354,444.92/489,143.24 = 193,306.76/x
  3. Step 3: Cross multiply
    354,444.92x = 489,143.24 × 193,306.76
  4. Step 4: Simplify right side
    354,444.92x = 94,554,694,900.30
  5. Step 5: Solve for x
    x = 94,554,694,900.30/354,444.92
  6. Step 6: Final answer
    x = 266,768.37

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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.