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Finding the Fourth Proportional to 593.38, 890.21 and 228.21

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Solution

The fourth proportional to 593.38, 890.21 and 228.21 is: 342.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.38 : 890.21 = 228.21 : x
  2. Step 2: Convert to fraction form
    593.38/890.21 = 228.21/x
  3. Step 3: Cross multiply
    593.38x = 890.21 × 228.21
  4. Step 4: Simplify right side
    593.38x = 203,154.82
  5. Step 5: Solve for x
    x = 203,154.82/593.38
  6. Step 6: Final answer
    x = 342.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.