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Finding the Fourth Proportional to 602.58, 903.15 and 217.62

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Solution

The fourth proportional to 602.58, 903.15 and 217.62 is: 326.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.58 : 903.15 = 217.62 : x
  2. Step 2: Convert to fraction form
    602.58/903.15 = 217.62/x
  3. Step 3: Cross multiply
    602.58x = 903.15 × 217.62
  4. Step 4: Simplify right side
    602.58x = 196,543.50
  5. Step 5: Solve for x
    x = 196,543.50/602.58
  6. Step 6: Final answer
    x = 326.17

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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.