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Finding the Fourth Proportional to 274,833.34, 379,310.08 and 153,982.81

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Solution

The fourth proportional to 274,833.34, 379,310.08 and 153,982.81 is: 212,518.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,833.34 : 379,310.08 = 153,982.81 : x
  2. Step 2: Convert to fraction form
    274,833.34/379,310.08 = 153,982.81/x
  3. Step 3: Cross multiply
    274,833.34x = 379,310.08 × 153,982.81
  4. Step 4: Simplify right side
    274,833.34x = 58,407,231,979.72
  5. Step 5: Solve for x
    x = 58,407,231,979.72/274,833.34
  6. Step 6: Final answer
    x = 212,518.73

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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.