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Finding the Fourth Proportional to 217,556.61, 300,247.12 and 126,941.77

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Solution

The fourth proportional to 217,556.61, 300,247.12 and 126,941.77 is: 175,190.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,556.61 : 300,247.12 = 126,941.77 : x
  2. Step 2: Convert to fraction form
    217,556.61/300,247.12 = 126,941.77/x
  3. Step 3: Cross multiply
    217,556.61x = 300,247.12 × 126,941.77
  4. Step 4: Simplify right side
    217,556.61x = 38,113,901,059.24
  5. Step 5: Solve for x
    x = 38,113,901,059.24/217,556.61
  6. Step 6: Final answer
    x = 175,190.73

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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.