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Finding the Fourth Proportional to 217,759.52, 300,534.71 and 137,185.67

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Solution

The fourth proportional to 217,759.52, 300,534.71 and 137,185.67 is: 189,332.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,759.52 : 300,534.71 = 137,185.67 : x
  2. Step 2: Convert to fraction form
    217,759.52/300,534.71 = 137,185.67/x
  3. Step 3: Cross multiply
    217,759.52x = 300,534.71 × 137,185.67
  4. Step 4: Simplify right side
    217,759.52x = 41,229,055,615.01
  5. Step 5: Solve for x
    x = 41,229,055,615.01/217,759.52
  6. Step 6: Final answer
    x = 189,332.96

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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.