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Finding the Fourth Proportional to 238,076.65, 328,544.82 and 130,648.48

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Solution

The fourth proportional to 238,076.65, 328,544.82 and 130,648.48 is: 180,294.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,076.65 : 328,544.82 = 130,648.48 : x
  2. Step 2: Convert to fraction form
    238,076.65/328,544.82 = 130,648.48/x
  3. Step 3: Cross multiply
    238,076.65x = 328,544.82 × 130,648.48
  4. Step 4: Simplify right side
    238,076.65x = 42,923,881,344.87
  5. Step 5: Solve for x
    x = 42,923,881,344.87/238,076.65
  6. Step 6: Final answer
    x = 180,294.38

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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.