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Finding the Fourth Proportional to 354,967.27, 489,874.76 and 193,837.30

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Solution

The fourth proportional to 354,967.27, 489,874.76 and 193,837.30 is: 267,506.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,967.27 : 489,874.76 = 193,837.30 : x
  2. Step 2: Convert to fraction form
    354,967.27/489,874.76 = 193,837.30/x
  3. Step 3: Cross multiply
    354,967.27x = 489,874.76 × 193,837.30
  4. Step 4: Simplify right side
    354,967.27x = 94,956,000,816.55
  5. Step 5: Solve for x
    x = 94,956,000,816.55/354,967.27
  6. Step 6: Final answer
    x = 267,506.36

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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.