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Finding the Fourth Proportional to 308,566.20, 462,849.30 and 86,950.20

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Solution

The fourth proportional to 308,566.20, 462,849.30 and 86,950.20 is: 130,425.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,566.20 : 462,849.30 = 86,950.20 : x
  2. Step 2: Convert to fraction form
    308,566.20/462,849.30 = 86,950.20/x
  3. Step 3: Cross multiply
    308,566.20x = 462,849.30 × 86,950.20
  4. Step 4: Simplify right side
    308,566.20x = 40,244,839,204.86
  5. Step 5: Solve for x
    x = 40,244,839,204.86/308,566.20
  6. Step 6: Final answer
    x = 130,425.30

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1.5x scale

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.