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Finding the Fourth Proportional to 437.72, 660.76 and 435.29

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Solution

The fourth proportional to 437.72, 660.76 and 435.29 is: 657.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.72 : 660.76 = 435.29 : x
  2. Step 2: Convert to fraction form
    437.72/660.76 = 435.29/x
  3. Step 3: Cross multiply
    437.72x = 660.76 × 435.29
  4. Step 4: Simplify right side
    437.72x = 287,622.22
  5. Step 5: Solve for x
    x = 287,622.22/437.72
  6. Step 6: Final answer
    x = 657.09

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.