Home / 302,939.98-454,502.25-143,138.61

Finding the Fourth Proportional to 302,939.98, 454,502.25 and 143,138.61

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Solution

The fourth proportional to 302,939.98, 454,502.25 and 143,138.61 is: 214,751.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,939.98 : 454,502.25 = 143,138.61 : x
  2. Step 2: Convert to fraction form
    302,939.98/454,502.25 = 143,138.61/x
  3. Step 3: Cross multiply
    302,939.98x = 454,502.25 × 143,138.61
  4. Step 4: Simplify right side
    302,939.98x = 65,056,820,306.87
  5. Step 5: Solve for x
    x = 65,056,820,306.87/302,939.98
  6. Step 6: Final answer
    x = 214,751.52

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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.