Home / 235,834.74-325,401.30-140,322.78

Finding the Fourth Proportional to 235,834.74, 325,401.30 and 140,322.78

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Solution

The fourth proportional to 235,834.74, 325,401.30 and 140,322.78 is: 193,615.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,834.74 : 325,401.30 = 140,322.78 : x
  2. Step 2: Convert to fraction form
    235,834.74/325,401.30 = 140,322.78/x
  3. Step 3: Cross multiply
    235,834.74x = 325,401.30 × 140,322.78
  4. Step 4: Simplify right side
    235,834.74x = 45,661,215,031.61
  5. Step 5: Solve for x
    x = 45,661,215,031.61/235,834.74
  6. Step 6: Final answer
    x = 193,615.30

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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.