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Finding the Fourth Proportional to 217,189.44, 299,721.53 and 132,306.51

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Solution

The fourth proportional to 217,189.44, 299,721.53 and 132,306.51 is: 182,583.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,189.44 : 299,721.53 = 132,306.51 : x
  2. Step 2: Convert to fraction form
    217,189.44/299,721.53 = 132,306.51/x
  3. Step 3: Cross multiply
    217,189.44x = 299,721.53 × 132,306.51
  4. Step 4: Simplify right side
    217,189.44x = 39,655,109,606.16
  5. Step 5: Solve for x
    x = 39,655,109,606.16/217,189.44
  6. Step 6: Final answer
    x = 182,583.05

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1.5x scale

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.