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Finding the Fourth Proportional to 602.76, 831.68 and 354.08

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Solution

The fourth proportional to 602.76, 831.68 and 354.08 is: 488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.76 : 831.68 = 354.08 : x
  2. Step 2: Convert to fraction form
    602.76/831.68 = 354.08/x
  3. Step 3: Cross multiply
    602.76x = 831.68 × 354.08
  4. Step 4: Simplify right side
    602.76x = 294,481.25
  5. Step 5: Solve for x
    x = 294,481.25/602.76
  6. Step 6: Final answer
    x = 488.55

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Find fourth proportional to 301.38, 415.84 and 177.04
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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.