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Finding the Fourth Proportional to 268,965.65, 371,160.65 and 154,162.03

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Solution

The fourth proportional to 268,965.65, 371,160.65 and 154,162.03 is: 212,736.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,965.65 : 371,160.65 = 154,162.03 : x
  2. Step 2: Convert to fraction form
    268,965.65/371,160.65 = 154,162.03/x
  3. Step 3: Cross multiply
    268,965.65x = 371,160.65 × 154,162.03
  4. Step 4: Simplify right side
    268,965.65x = 57,218,876,633.51
  5. Step 5: Solve for x
    x = 57,218,876,633.51/268,965.65
  6. Step 6: Final answer
    x = 212,736.74

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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.