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Finding the Fourth Proportional to 153,297.31, 229,946.04 and 68,958.95

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Solution

The fourth proportional to 153,297.31, 229,946.04 and 68,958.95 is: 103,438.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,297.31 : 229,946.04 = 68,958.95 : x
  2. Step 2: Convert to fraction form
    153,297.31/229,946.04 = 68,958.95/x
  3. Step 3: Cross multiply
    153,297.31x = 229,946.04 × 68,958.95
  4. Step 4: Simplify right side
    153,297.31x = 15,856,836,325.33
  5. Step 5: Solve for x
    x = 15,856,836,325.33/153,297.31
  6. Step 6: Final answer
    x = 103,438.45

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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.