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Finding the Fourth Proportional to 697.03, 1,045.70 and 264.19

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Solution

The fourth proportional to 697.03, 1,045.70 and 264.19 is: 396.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    697.03 : 1,045.70 = 264.19 : x
  2. Step 2: Convert to fraction form
    697.03/1,045.70 = 264.19/x
  3. Step 3: Cross multiply
    697.03x = 1,045.70 × 264.19
  4. Step 4: Simplify right side
    697.03x = 276,263.48
  5. Step 5: Solve for x
    x = 276,263.48/697.03
  6. Step 6: Final answer
    x = 396.34

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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.