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Finding the Fourth Proportional to 217,466.89, 300,104.85 and 126,885.13

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Solution

The fourth proportional to 217,466.89, 300,104.85 and 126,885.13 is: 175,101.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,466.89 : 300,104.85 = 126,885.13 : x
  2. Step 2: Convert to fraction form
    217,466.89/300,104.85 = 126,885.13/x
  3. Step 3: Cross multiply
    217,466.89x = 300,104.85 × 126,885.13
  4. Step 4: Simplify right side
    217,466.89x = 38,078,842,905.88
  5. Step 5: Solve for x
    x = 38,078,842,905.88/217,466.89
  6. Step 6: Final answer
    x = 175,101.80

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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.