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Finding the Fourth Proportional to 593.68, 818.88 and 386.68

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Solution

The fourth proportional to 593.68, 818.88 and 386.68 is: 533.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.68 : 818.88 = 386.68 : x
  2. Step 2: Convert to fraction form
    593.68/818.88 = 386.68/x
  3. Step 3: Cross multiply
    593.68x = 818.88 × 386.68
  4. Step 4: Simplify right side
    593.68x = 316,644.52
  5. Step 5: Solve for x
    x = 316,644.52/593.68
  6. Step 6: Final answer
    x = 533.36

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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.