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Finding the Fourth Proportional to 178,044.40, 245,816 and 158,891.41

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Solution

The fourth proportional to 178,044.40, 245,816 and 158,891.41 is: 219,372.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,044.40 : 245,816 = 158,891.41 : x
  2. Step 2: Convert to fraction form
    178,044.40/245,816 = 158,891.41/x
  3. Step 3: Cross multiply
    178,044.40x = 245,816 × 158,891.41
  4. Step 4: Simplify right side
    178,044.40x = 39,058,050,840.56
  5. Step 5: Solve for x
    x = 39,058,050,840.56/178,044.40
  6. Step 6: Final answer
    x = 219,372.53

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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.