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Finding the Fourth Proportional to 192,541.60, 288,954.32 and 91,339.98

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Solution

The fourth proportional to 192,541.60, 288,954.32 and 91,339.98 is: 137,077.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,541.60 : 288,954.32 = 91,339.98 : x
  2. Step 2: Convert to fraction form
    192,541.60/288,954.32 = 91,339.98/x
  3. Step 3: Cross multiply
    192,541.60x = 288,954.32 × 91,339.98
  4. Step 4: Simplify right side
    192,541.60x = 26,393,081,809.71
  5. Step 5: Solve for x
    x = 26,393,081,809.71/192,541.60
  6. Step 6: Final answer
    x = 137,077.30

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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.