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Finding the Fourth Proportional to 543.63, 749.48 and 368.67

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Solution

The fourth proportional to 543.63, 749.48 and 368.67 is: 508.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    543.63 : 749.48 = 368.67 : x
  2. Step 2: Convert to fraction form
    543.63/749.48 = 368.67/x
  3. Step 3: Cross multiply
    543.63x = 749.48 × 368.67
  4. Step 4: Simplify right side
    543.63x = 276,308.95
  5. Step 5: Solve for x
    x = 276,308.95/543.63
  6. Step 6: Final answer
    x = 508.27

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