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Finding the Fourth Proportional to 388,346.58, 536,084.10 and 261,096

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Solution

The fourth proportional to 388,346.58, 536,084.10 and 261,096 is: 360,423.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,346.58 : 536,084.10 = 261,096 : x
  2. Step 2: Convert to fraction form
    388,346.58/536,084.10 = 261,096/x
  3. Step 3: Cross multiply
    388,346.58x = 536,084.10 × 261,096
  4. Step 4: Simplify right side
    388,346.58x = 139,969,414,173.60
  5. Step 5: Solve for x
    x = 139,969,414,173.60/388,346.58
  6. Step 6: Final answer
    x = 360,423.97

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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.