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Finding the Fourth Proportional to 306,370.50, 459,581.67 and 84,754.50

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Solution

The fourth proportional to 306,370.50, 459,581.67 and 84,754.50 is: 127,138.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,370.50 : 459,581.67 = 84,754.50 : x
  2. Step 2: Convert to fraction form
    306,370.50/459,581.67 = 84,754.50/x
  3. Step 3: Cross multiply
    306,370.50x = 459,581.67 × 84,754.50
  4. Step 4: Simplify right side
    306,370.50x = 38,951,614,650.02
  5. Step 5: Solve for x
    x = 38,951,614,650.02/306,370.50
  6. Step 6: Final answer
    x = 127,138.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.