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Finding the Fourth Proportional to 308,409.90, 462,244.68 and 158,720.82

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Solution

The fourth proportional to 308,409.90, 462,244.68 and 158,720.82 is: 237,890.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,409.90 : 462,244.68 = 158,720.82 : x
  2. Step 2: Convert to fraction form
    308,409.90/462,244.68 = 158,720.82/x
  3. Step 3: Cross multiply
    308,409.90x = 462,244.68 × 158,720.82
  4. Step 4: Simplify right side
    308,409.90x = 73,367,854,650.24
  5. Step 5: Solve for x
    x = 73,367,854,650.24/308,409.90
  6. Step 6: Final answer
    x = 237,890.72

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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.