Home / 223,948.38-309,048.78-123,346.38

Finding the Fourth Proportional to 223,948.38, 309,048.78 and 123,346.38

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Solution

The fourth proportional to 223,948.38, 309,048.78 and 123,346.38 is: 170,218.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,948.38 : 309,048.78 = 123,346.38 : x
  2. Step 2: Convert to fraction form
    223,948.38/309,048.78 = 123,346.38/x
  3. Step 3: Cross multiply
    223,948.38x = 309,048.78 × 123,346.38
  4. Step 4: Simplify right side
    223,948.38x = 38,120,048,256.42
  5. Step 5: Solve for x
    x = 38,120,048,256.42/223,948.38
  6. Step 6: Final answer
    x = 170,218.01

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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.