Home / 303,135.72-418,321.77-167,182.28

Finding the Fourth Proportional to 303,135.72, 418,321.77 and 167,182.28

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Solution

The fourth proportional to 303,135.72, 418,321.77 and 167,182.28 is: 230,708.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,135.72 : 418,321.77 = 167,182.28 : x
  2. Step 2: Convert to fraction form
    303,135.72/418,321.77 = 167,182.28/x
  3. Step 3: Cross multiply
    303,135.72x = 418,321.77 × 167,182.28
  4. Step 4: Simplify right side
    303,135.72x = 69,935,986,132.40
  5. Step 5: Solve for x
    x = 69,935,986,132.40/303,135.72
  6. Step 6: Final answer
    x = 230,708.50

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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.