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Finding the Fourth Proportional to 276,294.86, 381,287.49 and 163,124.90

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Solution

The fourth proportional to 276,294.86, 381,287.49 and 163,124.90 is: 225,112.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,294.86 : 381,287.49 = 163,124.90 : x
  2. Step 2: Convert to fraction form
    276,294.86/381,287.49 = 163,124.90/x
  3. Step 3: Cross multiply
    276,294.86x = 381,287.49 × 163,124.90
  4. Step 4: Simplify right side
    276,294.86x = 62,197,483,677.50
  5. Step 5: Solve for x
    x = 62,197,483,677.50/276,294.86
  6. Step 6: Final answer
    x = 225,112.71

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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.