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Finding the Fourth Proportional to 354.09, 530.50 and 230.57

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Solution

The fourth proportional to 354.09, 530.50 and 230.57 is: 345.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.09 : 530.50 = 230.57 : x
  2. Step 2: Convert to fraction form
    354.09/530.50 = 230.57/x
  3. Step 3: Cross multiply
    354.09x = 530.50 × 230.57
  4. Step 4: Simplify right side
    354.09x = 122,317.39
  5. Step 5: Solve for x
    x = 122,317.39/354.09
  6. Step 6: Final answer
    x = 345.44

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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.