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Finding the Fourth Proportional to 388,707.87, 536,233.59 and 227,464.01

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Solution

The fourth proportional to 388,707.87, 536,233.59 and 227,464.01 is: 313,793.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,707.87 : 536,233.59 = 227,464.01 : x
  2. Step 2: Convert to fraction form
    388,707.87/536,233.59 = 227,464.01/x
  3. Step 3: Cross multiply
    388,707.87x = 536,233.59 × 227,464.01
  4. Step 4: Simplify right side
    388,707.87x = 121,973,839,996.93
  5. Step 5: Solve for x
    x = 121,973,839,996.93/388,707.87
  6. Step 6: Final answer
    x = 313,793.08

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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.