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Finding the Fourth Proportional to 217,448.58, 299,951.61 and 136,748.10

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Solution

The fourth proportional to 217,448.58, 299,951.61 and 136,748.10 is: 188,632.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,448.58 : 299,951.61 = 136,748.10 : x
  2. Step 2: Convert to fraction form
    217,448.58/299,951.61 = 136,748.10/x
  3. Step 3: Cross multiply
    217,448.58x = 299,951.61 × 136,748.10
  4. Step 4: Simplify right side
    217,448.58x = 41,017,812,759.44
  5. Step 5: Solve for x
    x = 41,017,812,759.44/217,448.58
  6. Step 6: Final answer
    x = 188,632.24

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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.