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Finding the Fourth Proportional to 697.46, 1,045.94 and 235.14

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Solution

The fourth proportional to 697.46, 1,045.94 and 235.14 is: 352.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.46 : 1,045.94 = 235.14 : x
  2. Step 2: Convert to fraction form
    697.46/1,045.94 = 235.14/x
  3. Step 3: Cross multiply
    697.46x = 1,045.94 × 235.14
  4. Step 4: Simplify right side
    697.46x = 245,941.16
  5. Step 5: Solve for x
    x = 245,941.16/697.46
  6. Step 6: Final answer
    x = 352.63

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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.