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Finding the Fourth Proportional to 225,853.56, 311,675.78 and 123,876.93

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Solution

The fourth proportional to 225,853.56, 311,675.78 and 123,876.93 is: 170,948.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,853.56 : 311,675.78 = 123,876.93 : x
  2. Step 2: Convert to fraction form
    225,853.56/311,675.78 = 123,876.93/x
  3. Step 3: Cross multiply
    225,853.56x = 311,675.78 × 123,876.93
  4. Step 4: Simplify right side
    225,853.56x = 38,609,437,533.07
  5. Step 5: Solve for x
    x = 38,609,437,533.07/225,853.56
  6. Step 6: Final answer
    x = 170,948.99

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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.