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Finding the Fourth Proportional to 243,171.78, 335,532.81 and 170,795.82

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Solution

The fourth proportional to 243,171.78, 335,532.81 and 170,795.82 is: 235,667.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,171.78 : 335,532.81 = 170,795.82 : x
  2. Step 2: Convert to fraction form
    243,171.78/335,532.81 = 170,795.82/x
  3. Step 3: Cross multiply
    243,171.78x = 335,532.81 × 170,795.82
  4. Step 4: Simplify right side
    243,171.78x = 57,307,600,488.53
  5. Step 5: Solve for x
    x = 57,307,600,488.53/243,171.78
  6. Step 6: Final answer
    x = 235,667.15

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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.