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Finding the Fourth Proportional to 655.04, 897.16 and 617.18

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Solution

The fourth proportional to 655.04, 897.16 and 617.18 is: 845.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.04 : 897.16 = 617.18 : x
  2. Step 2: Convert to fraction form
    655.04/897.16 = 617.18/x
  3. Step 3: Cross multiply
    655.04x = 897.16 × 617.18
  4. Step 4: Simplify right side
    655.04x = 553,704.72
  5. Step 5: Solve for x
    x = 553,704.72/655.04
  6. Step 6: Final answer
    x = 845.30

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.