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Finding the Fourth Proportional to 356.06, 487.13 and 354.52

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Solution

The fourth proportional to 356.06, 487.13 and 354.52 is: 485.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.06 : 487.13 = 354.52 : x
  2. Step 2: Convert to fraction form
    356.06/487.13 = 354.52/x
  3. Step 3: Cross multiply
    356.06x = 487.13 × 354.52
  4. Step 4: Simplify right side
    356.06x = 172,693.12
  5. Step 5: Solve for x
    x = 172,693.12/356.06
  6. Step 6: Final answer
    x = 485.02

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.