Home / 274,164.81-378,345.29-153,306.33

Finding the Fourth Proportional to 274,164.81, 378,345.29 and 153,306.33

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Solution

The fourth proportional to 274,164.81, 378,345.29 and 153,306.33 is: 211,561.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,164.81 : 378,345.29 = 153,306.33 : x
  2. Step 2: Convert to fraction form
    274,164.81/378,345.29 = 153,306.33/x
  3. Step 3: Cross multiply
    274,164.81x = 378,345.29 × 153,306.33
  4. Step 4: Simplify right side
    274,164.81x = 58,002,727,882.69
  5. Step 5: Solve for x
    x = 58,002,727,882.69/274,164.81
  6. Step 6: Final answer
    x = 211,561.53

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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.