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Finding the Fourth Proportional to 437.91, 604.11 and 260.77

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Solution

The fourth proportional to 437.91, 604.11 and 260.77 is: 359.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.91 : 604.11 = 260.77 : x
  2. Step 2: Convert to fraction form
    437.91/604.11 = 260.77/x
  3. Step 3: Cross multiply
    437.91x = 604.11 × 260.77
  4. Step 4: Simplify right side
    437.91x = 157,531.28
  5. Step 5: Solve for x
    x = 157,531.28/437.91
  6. Step 6: Final answer
    x = 359.74

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Find fourth proportional to 218.95, 302.05 and 130.38
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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.