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Finding the Fourth Proportional to 590.11, 884.99 and 157.21

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Solution

The fourth proportional to 590.11, 884.99 and 157.21 is: 235.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.11 : 884.99 = 157.21 : x
  2. Step 2: Convert to fraction form
    590.11/884.99 = 157.21/x
  3. Step 3: Cross multiply
    590.11x = 884.99 × 157.21
  4. Step 4: Simplify right side
    590.11x = 139,128.49
  5. Step 5: Solve for x
    x = 139,128.49/590.11
  6. Step 6: Final answer
    x = 235.77

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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.