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Finding the Fourth Proportional to 537, 740.42 and 395.16

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Solution

The fourth proportional to 537, 740.42 and 395.16 is: 544.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    537 : 740.42 = 395.16 : x
  2. Step 2: Convert to fraction form
    537/740.42 = 395.16/x
  3. Step 3: Cross multiply
    537x = 740.42 × 395.16
  4. Step 4: Simplify right side
    537x = 292,584.37
  5. Step 5: Solve for x
    x = 292,584.37/537
  6. Step 6: Final answer
    x = 544.85

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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.