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Finding the Fourth Proportional to 225,545.59, 311,248.15 and 123,566.09

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Solution

The fourth proportional to 225,545.59, 311,248.15 and 123,566.09 is: 170,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,545.59 : 311,248.15 = 123,566.09 : x
  2. Step 2: Convert to fraction form
    225,545.59/311,248.15 = 123,566.09/x
  3. Step 3: Cross multiply
    225,545.59x = 311,248.15 × 123,566.09
  4. Step 4: Simplify right side
    225,545.59x = 38,459,715,745.14
  5. Step 5: Solve for x
    x = 38,459,715,745.14/225,545.59
  6. Step 6: Final answer
    x = 170,518.59

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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.