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Finding the Fourth Proportional to 235.32, 350.63 and 209.76

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Solution

The fourth proportional to 235.32, 350.63 and 209.76 is: 312.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.32 : 350.63 = 209.76 : x
  2. Step 2: Convert to fraction form
    235.32/350.63 = 209.76/x
  3. Step 3: Cross multiply
    235.32x = 350.63 × 209.76
  4. Step 4: Simplify right side
    235.32x = 73,547.10
  5. Step 5: Solve for x
    x = 73,547.10/235.32
  6. Step 6: Final answer
    x = 312.54

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.