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Finding the Fourth Proportional to 308,270.60, 462,405.90 and 97,929.80

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Solution

The fourth proportional to 308,270.60, 462,405.90 and 97,929.80 is: 146,894.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,270.60 : 462,405.90 = 97,929.80 : x
  2. Step 2: Convert to fraction form
    308,270.60/462,405.90 = 97,929.80/x
  3. Step 3: Cross multiply
    308,270.60x = 462,405.90 × 97,929.80
  4. Step 4: Simplify right side
    308,270.60x = 45,283,317,305.82
  5. Step 5: Solve for x
    x = 45,283,317,305.82/308,270.60
  6. Step 6: Final answer
    x = 146,894.70

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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.