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Finding the Fourth Proportional to 279,097.48, 385,164.66 and 159,888.52

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Solution

The fourth proportional to 279,097.48, 385,164.66 and 159,888.52 is: 220,651.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,097.48 : 385,164.66 = 159,888.52 : x
  2. Step 2: Convert to fraction form
    279,097.48/385,164.66 = 159,888.52/x
  3. Step 3: Cross multiply
    279,097.48x = 385,164.66 × 159,888.52
  4. Step 4: Simplify right side
    279,097.48x = 61,583,407,443.70
  5. Step 5: Solve for x
    x = 61,583,407,443.70/279,097.48
  6. Step 6: Final answer
    x = 220,651.97

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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.