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Finding the Fourth Proportional to 543.38, 750.47 and 368.42

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Solution

The fourth proportional to 543.38, 750.47 and 368.42 is: 508.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.38 : 750.47 = 368.42 : x
  2. Step 2: Convert to fraction form
    543.38/750.47 = 368.42/x
  3. Step 3: Cross multiply
    543.38x = 750.47 × 368.42
  4. Step 4: Simplify right side
    543.38x = 276,482.56
  5. Step 5: Solve for x
    x = 276,482.56/543.38
  6. Step 6: Final answer
    x = 508.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.