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Finding the Fourth Proportional to 239,689.45, 359,440.74 and 89,847.98

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Solution

The fourth proportional to 239,689.45, 359,440.74 and 89,847.98 is: 134,736.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,689.45 : 359,440.74 = 89,847.98 : x
  2. Step 2: Convert to fraction form
    239,689.45/359,440.74 = 89,847.98/x
  3. Step 3: Cross multiply
    239,689.45x = 359,440.74 × 89,847.98
  4. Step 4: Simplify right side
    239,689.45x = 32,295,025,991.26
  5. Step 5: Solve for x
    x = 32,295,025,991.26/239,689.45
  6. Step 6: Final answer
    x = 134,736.95

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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.