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Finding the Fourth Proportional to 543.83, 815.01 and 348.53

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Solution

The fourth proportional to 543.83, 815.01 and 348.53 is: 522.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.83 : 815.01 = 348.53 : x
  2. Step 2: Convert to fraction form
    543.83/815.01 = 348.53/x
  3. Step 3: Cross multiply
    543.83x = 815.01 × 348.53
  4. Step 4: Simplify right side
    543.83x = 284,055.44
  5. Step 5: Solve for x
    x = 284,055.44/543.83
  6. Step 6: Final answer
    x = 522.32

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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.