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Finding the Fourth Proportional to 436.86, 602.82 and 259.74

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Solution

The fourth proportional to 436.86, 602.82 and 259.74 is: 358.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.86 : 602.82 = 259.74 : x
  2. Step 2: Convert to fraction form
    436.86/602.82 = 259.74/x
  3. Step 3: Cross multiply
    436.86x = 602.82 × 259.74
  4. Step 4: Simplify right side
    436.86x = 156,576.47
  5. Step 5: Solve for x
    x = 156,576.47/436.86
  6. Step 6: Final answer
    x = 358.41

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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.