Home / 326,917.35-490,375.17-87,031.26

Finding the Fourth Proportional to 326,917.35, 490,375.17 and 87,031.26

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Solution

The fourth proportional to 326,917.35, 490,375.17 and 87,031.26 is: 130,546.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,917.35 : 490,375.17 = 87,031.26 : x
  2. Step 2: Convert to fraction form
    326,917.35/490,375.17 = 87,031.26/x
  3. Step 3: Cross multiply
    326,917.35x = 490,375.17 × 87,031.26
  4. Step 4: Simplify right side
    326,917.35x = 42,677,968,917.81
  5. Step 5: Solve for x
    x = 42,677,968,917.81/326,917.35
  6. Step 6: Final answer
    x = 130,546.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.