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Finding the Fourth Proportional to 217,335.92, 300,069.20 and 135,788.33

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Solution

The fourth proportional to 217,335.92, 300,069.20 and 135,788.33 is: 187,478.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,335.92 : 300,069.20 = 135,788.33 : x
  2. Step 2: Convert to fraction form
    217,335.92/300,069.20 = 135,788.33/x
  3. Step 3: Cross multiply
    217,335.92x = 300,069.20 × 135,788.33
  4. Step 4: Simplify right side
    217,335.92x = 40,745,896,642.08
  5. Step 5: Solve for x
    x = 40,745,896,642.08/217,335.92
  6. Step 6: Final answer
    x = 187,478.89

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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.