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Finding the Fourth Proportional to 388,474.93, 536,399.45 and 303,833.17

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Solution

The fourth proportional to 388,474.93, 536,399.45 and 303,833.17 is: 419,527.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,474.93 : 536,399.45 = 303,833.17 : x
  2. Step 2: Convert to fraction form
    388,474.93/536,399.45 = 303,833.17/x
  3. Step 3: Cross multiply
    388,474.93x = 536,399.45 × 303,833.17
  4. Step 4: Simplify right side
    388,474.93x = 162,975,945,279.76
  5. Step 5: Solve for x
    x = 162,975,945,279.76/388,474.93
  6. Step 6: Final answer
    x = 419,527.57

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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.