Home / 301,279.18-451,921.38-76,639.84

Finding the Fourth Proportional to 301,279.18, 451,921.38 and 76,639.84

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Solution

The fourth proportional to 301,279.18, 451,921.38 and 76,639.84 is: 114,960.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,279.18 : 451,921.38 = 76,639.84 : x
  2. Step 2: Convert to fraction form
    301,279.18/451,921.38 = 76,639.84/x
  3. Step 3: Cross multiply
    301,279.18x = 451,921.38 × 76,639.84
  4. Step 4: Simplify right side
    301,279.18x = 34,635,182,255.78
  5. Step 5: Solve for x
    x = 34,635,182,255.78/301,279.18
  6. Step 6: Final answer
    x = 114,960.42

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1.5x scale

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.