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Finding the Fourth Proportional to 308,441.80, 462,662.70 and 245,456.20

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Solution

The fourth proportional to 308,441.80, 462,662.70 and 245,456.20 is: 368,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,441.80 : 462,662.70 = 245,456.20 : x
  2. Step 2: Convert to fraction form
    308,441.80/462,662.70 = 245,456.20/x
  3. Step 3: Cross multiply
    308,441.80x = 462,662.70 × 245,456.20
  4. Step 4: Simplify right side
    308,441.80x = 113,563,428,223.74
  5. Step 5: Solve for x
    x = 113,563,428,223.74/308,441.80
  6. Step 6: Final answer
    x = 368,184.30

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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.