Home / 226,433.61-312,149.06-158,238.86

Finding the Fourth Proportional to 226,433.61, 312,149.06 and 158,238.86

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Solution

The fourth proportional to 226,433.61, 312,149.06 and 158,238.86 is: 218,139.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,433.61 : 312,149.06 = 158,238.86 : x
  2. Step 2: Convert to fraction form
    226,433.61/312,149.06 = 158,238.86/x
  3. Step 3: Cross multiply
    226,433.61x = 312,149.06 × 158,238.86
  4. Step 4: Simplify right side
    226,433.61x = 49,394,109,052.53
  5. Step 5: Solve for x
    x = 49,394,109,052.53/226,433.61
  6. Step 6: Final answer
    x = 218,139.48

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1.5x scale

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.