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Finding the Fourth Proportional to 306,560.54, 459,895.76 and 126,645.95

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Solution

The fourth proportional to 306,560.54, 459,895.76 and 126,645.95 is: 189,991.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,560.54 : 459,895.76 = 126,645.95 : x
  2. Step 2: Convert to fraction form
    306,560.54/459,895.76 = 126,645.95/x
  3. Step 3: Cross multiply
    306,560.54x = 459,895.76 × 126,645.95
  4. Step 4: Simplify right side
    306,560.54x = 58,243,935,426.17
  5. Step 5: Solve for x
    x = 58,243,935,426.17/306,560.54
  6. Step 6: Final answer
    x = 189,991.63

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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.