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Finding the Fourth Proportional to 291.06, 436.77 and 175.86

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Solution

The fourth proportional to 291.06, 436.77 and 175.86 is: 263.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    291.06 : 436.77 = 175.86 : x
  2. Step 2: Convert to fraction form
    291.06/436.77 = 175.86/x
  3. Step 3: Cross multiply
    291.06x = 436.77 × 175.86
  4. Step 4: Simplify right side
    291.06x = 76,810.37
  5. Step 5: Solve for x
    x = 76,810.37/291.06
  6. Step 6: Final answer
    x = 263.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.