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Finding the Fourth Proportional to 226,407.56, 312,440.82 and 123,040.96

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Solution

The fourth proportional to 226,407.56, 312,440.82 and 123,040.96 is: 169,795.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,407.56 : 312,440.82 = 123,040.96 : x
  2. Step 2: Convert to fraction form
    226,407.56/312,440.82 = 123,040.96/x
  3. Step 3: Cross multiply
    226,407.56x = 312,440.82 × 123,040.96
  4. Step 4: Simplify right side
    226,407.56x = 38,443,018,435.99
  5. Step 5: Solve for x
    x = 38,443,018,435.99/226,407.56
  6. Step 6: Final answer
    x = 169,795.65

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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.