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Finding the Fourth Proportional to 217,037.40, 325,512.90 and 104,717.40

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Solution

The fourth proportional to 217,037.40, 325,512.90 and 104,717.40 is: 157,055.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,037.40 : 325,512.90 = 104,717.40 : x
  2. Step 2: Convert to fraction form
    217,037.40/325,512.90 = 104,717.40/x
  3. Step 3: Cross multiply
    217,037.40x = 325,512.90 × 104,717.40
  4. Step 4: Simplify right side
    217,037.40x = 34,086,864,554.46
  5. Step 5: Solve for x
    x = 34,086,864,554.46/217,037.40
  6. Step 6: Final answer
    x = 157,055.26

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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.