Home / 217,826.28-300,596.48-121,031.03

Finding the Fourth Proportional to 217,826.28, 300,596.48 and 121,031.03

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Solution

The fourth proportional to 217,826.28, 300,596.48 and 121,031.03 is: 167,020.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,826.28 : 300,596.48 = 121,031.03 : x
  2. Step 2: Convert to fraction form
    217,826.28/300,596.48 = 121,031.03/x
  3. Step 3: Cross multiply
    217,826.28x = 300,596.48 × 121,031.03
  4. Step 4: Simplify right side
    217,826.28x = 36,381,500,085.79
  5. Step 5: Solve for x
    x = 36,381,500,085.79/217,826.28
  6. Step 6: Final answer
    x = 167,020.71

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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.