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Finding the Fourth Proportional to 308,960.40, 462,857.40 and 158,689.20

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Solution

The fourth proportional to 308,960.40, 462,857.40 and 158,689.20 is: 237,734.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,960.40 : 462,857.40 = 158,689.20 : x
  2. Step 2: Convert to fraction form
    308,960.40/462,857.40 = 158,689.20/x
  3. Step 3: Cross multiply
    308,960.40x = 462,857.40 × 158,689.20
  4. Step 4: Simplify right side
    308,960.40x = 73,450,470,520.08
  5. Step 5: Solve for x
    x = 73,450,470,520.08/308,960.40
  6. Step 6: Final answer
    x = 237,734.26

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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.