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Finding the Fourth Proportional to 593.20, 818.59 and 357.28

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Solution

The fourth proportional to 593.20, 818.59 and 357.28 is: 493.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.20 : 818.59 = 357.28 : x
  2. Step 2: Convert to fraction form
    593.20/818.59 = 357.28/x
  3. Step 3: Cross multiply
    593.20x = 818.59 × 357.28
  4. Step 4: Simplify right side
    593.20x = 292,465.84
  5. Step 5: Solve for x
    x = 292,465.84/593.20
  6. Step 6: Final answer
    x = 493.03

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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.