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Finding the Fourth Proportional to 543.09, 813.93 and 234.89

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Solution

The fourth proportional to 543.09, 813.93 and 234.89 is: 352.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.09 : 813.93 = 234.89 : x
  2. Step 2: Convert to fraction form
    543.09/813.93 = 234.89/x
  3. Step 3: Cross multiply
    543.09x = 813.93 × 234.89
  4. Step 4: Simplify right side
    543.09x = 191,184.02
  5. Step 5: Solve for x
    x = 191,184.02/543.09
  6. Step 6: Final answer
    x = 352.03

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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.