Home / 217,637.28-327,045.60-117,871.20

Finding the Fourth Proportional to 217,637.28, 327,045.60 and 117,871.20

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Solution

The fourth proportional to 217,637.28, 327,045.60 and 117,871.20 is: 177,126.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,637.28 : 327,045.60 = 117,871.20 : x
  2. Step 2: Convert to fraction form
    217,637.28/327,045.60 = 117,871.20/x
  3. Step 3: Cross multiply
    217,637.28x = 327,045.60 × 117,871.20
  4. Step 4: Simplify right side
    217,637.28x = 38,549,257,326.72
  5. Step 5: Solve for x
    x = 38,549,257,326.72/217,637.28
  6. Step 6: Final answer
    x = 177,126.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.