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Finding the Fourth Proportional to 226,374.55, 312,328.75 and 135,697.43

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Solution

The fourth proportional to 226,374.55, 312,328.75 and 135,697.43 is: 187,221.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,374.55 : 312,328.75 = 135,697.43 : x
  2. Step 2: Convert to fraction form
    226,374.55/312,328.75 = 135,697.43/x
  3. Step 3: Cross multiply
    226,374.55x = 312,328.75 × 135,697.43
  4. Step 4: Simplify right side
    226,374.55x = 42,382,206,789.23
  5. Step 5: Solve for x
    x = 42,382,206,789.23/226,374.55
  6. Step 6: Final answer
    x = 187,221.61

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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.