Home / 303,150.06-454,723.27-78,509.93

Finding the Fourth Proportional to 303,150.06, 454,723.27 and 78,509.93

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Solution

The fourth proportional to 303,150.06, 454,723.27 and 78,509.93 is: 117,764.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,150.06 : 454,723.27 = 78,509.93 : x
  2. Step 2: Convert to fraction form
    303,150.06/454,723.27 = 78,509.93/x
  3. Step 3: Cross multiply
    303,150.06x = 454,723.27 × 78,509.93
  4. Step 4: Simplify right side
    303,150.06x = 35,700,290,960.26
  5. Step 5: Solve for x
    x = 35,700,290,960.26/303,150.06
  6. Step 6: Final answer
    x = 117,764.42

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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.