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Finding the Fourth Proportional to 234,388.41, 323,243.40 and 153,785.31

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Solution

The fourth proportional to 234,388.41, 323,243.40 and 153,785.31 is: 212,084.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,388.41 : 323,243.40 = 153,785.31 : x
  2. Step 2: Convert to fraction form
    234,388.41/323,243.40 = 153,785.31/x
  3. Step 3: Cross multiply
    234,388.41x = 323,243.40 × 153,785.31
  4. Step 4: Simplify right side
    234,388.41x = 49,710,086,474.45
  5. Step 5: Solve for x
    x = 49,710,086,474.45/234,388.41
  6. Step 6: Final answer
    x = 212,084.23

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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.