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Finding the Fourth Proportional to 543.58, 813.98 and 299.84

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Solution

The fourth proportional to 543.58, 813.98 and 299.84 is: 448.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.58 : 813.98 = 299.84 : x
  2. Step 2: Convert to fraction form
    543.58/813.98 = 299.84/x
  3. Step 3: Cross multiply
    543.58x = 813.98 × 299.84
  4. Step 4: Simplify right side
    543.58x = 244,058.19
  5. Step 5: Solve for x
    x = 244,058.19/543.58
  6. Step 6: Final answer
    x = 448.98

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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.