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Finding the Fourth Proportional to 356.86, 531.56 and 352.60

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Solution

The fourth proportional to 356.86, 531.56 and 352.60 is: 525.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.86 : 531.56 = 352.60 : x
  2. Step 2: Convert to fraction form
    356.86/531.56 = 352.60/x
  3. Step 3: Cross multiply
    356.86x = 531.56 × 352.60
  4. Step 4: Simplify right side
    356.86x = 187,428.06
  5. Step 5: Solve for x
    x = 187,428.06/356.86
  6. Step 6: Final answer
    x = 525.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.