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Finding the Fourth Proportional to 403.58, 557.28 and 337.16

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Solution

The fourth proportional to 403.58, 557.28 and 337.16 is: 465.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    403.58 : 557.28 = 337.16 : x
  2. Step 2: Convert to fraction form
    403.58/557.28 = 337.16/x
  3. Step 3: Cross multiply
    403.58x = 557.28 × 337.16
  4. Step 4: Simplify right side
    403.58x = 187,889.74
  5. Step 5: Solve for x
    x = 187,889.74/403.58
  6. Step 6: Final answer
    x = 465.56

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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.