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Finding the Fourth Proportional to 388,442.94, 536,131.35 and 227,382.54

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Solution

The fourth proportional to 388,442.94, 536,131.35 and 227,382.54 is: 313,834.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,442.94 : 536,131.35 = 227,382.54 : x
  2. Step 2: Convert to fraction form
    388,442.94/536,131.35 = 227,382.54/x
  3. Step 3: Cross multiply
    388,442.94x = 536,131.35 × 227,382.54
  4. Step 4: Simplify right side
    388,442.94x = 121,906,908,136.63
  5. Step 5: Solve for x
    x = 121,906,908,136.63/388,442.94
  6. Step 6: Final answer
    x = 313,834.79

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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.