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Finding the Fourth Proportional to 300,861.96, 415,230.96 and 173,534.76

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Solution

The fourth proportional to 300,861.96, 415,230.96 and 173,534.76 is: 239,501.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,861.96 : 415,230.96 = 173,534.76 : x
  2. Step 2: Convert to fraction form
    300,861.96/415,230.96 = 173,534.76/x
  3. Step 3: Cross multiply
    300,861.96x = 415,230.96 × 173,534.76
  4. Step 4: Simplify right side
    300,861.96x = 72,057,004,988.17
  5. Step 5: Solve for x
    x = 72,057,004,988.17/300,861.96
  6. Step 6: Final answer
    x = 239,501.88

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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.