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Finding the Fourth Proportional to 613.22, 915.36 and 568.16

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Solution

The fourth proportional to 613.22, 915.36 and 568.16 is: 848.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.22 : 915.36 = 568.16 : x
  2. Step 2: Convert to fraction form
    613.22/915.36 = 568.16/x
  3. Step 3: Cross multiply
    613.22x = 915.36 × 568.16
  4. Step 4: Simplify right side
    613.22x = 520,070.94
  5. Step 5: Solve for x
    x = 520,070.94/613.22
  6. Step 6: Final answer
    x = 848.10

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Why These Related Problems?

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