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Finding the Fourth Proportional to 388,716.90, 536,246.01 and 227,473.02

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Solution

The fourth proportional to 388,716.90, 536,246.01 and 227,473.02 is: 313,805.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,716.90 : 536,246.01 = 227,473.02 : x
  2. Step 2: Convert to fraction form
    388,716.90/536,246.01 = 227,473.02/x
  3. Step 3: Cross multiply
    388,716.90x = 536,246.01 × 227,473.02
  4. Step 4: Simplify right side
    388,716.90x = 121,981,499,357.65
  5. Step 5: Solve for x
    x = 121,981,499,357.65/388,716.90
  6. Step 6: Final answer
    x = 313,805.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.