Home / 326,765.15-490,148.11-102,126.76

Finding the Fourth Proportional to 326,765.15, 490,148.11 and 102,126.76

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Solution

The fourth proportional to 326,765.15, 490,148.11 and 102,126.76 is: 153,190.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,765.15 : 490,148.11 = 102,126.76 : x
  2. Step 2: Convert to fraction form
    326,765.15/490,148.11 = 102,126.76/x
  3. Step 3: Cross multiply
    326,765.15x = 490,148.11 × 102,126.76
  4. Step 4: Simplify right side
    326,765.15x = 50,057,238,388.02
  5. Step 5: Solve for x
    x = 50,057,238,388.02/326,765.15
  6. Step 6: Final answer
    x = 153,190.26

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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.