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Finding the Fourth Proportional to 306,635.63, 459,654.60 and 146,669.79

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Solution

The fourth proportional to 306,635.63, 459,654.60 and 146,669.79 is: 219,861.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,635.63 : 459,654.60 = 146,669.79 : x
  2. Step 2: Convert to fraction form
    306,635.63/459,654.60 = 146,669.79/x
  3. Step 3: Cross multiply
    306,635.63x = 459,654.60 × 146,669.79
  4. Step 4: Simplify right side
    306,635.63x = 67,417,442,517.68
  5. Step 5: Solve for x
    x = 67,417,442,517.68/306,635.63
  6. Step 6: Final answer
    x = 219,861.74

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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.