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Finding the Fourth Proportional to 261.43, 360.77 and 150.93

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Solution

The fourth proportional to 261.43, 360.77 and 150.93 is: 208.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    261.43 : 360.77 = 150.93 : x
  2. Step 2: Convert to fraction form
    261.43/360.77 = 150.93/x
  3. Step 3: Cross multiply
    261.43x = 360.77 × 150.93
  4. Step 4: Simplify right side
    261.43x = 54,451.02
  5. Step 5: Solve for x
    x = 54,451.02/261.43
  6. Step 6: Final answer
    x = 208.28

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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.