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Finding the Fourth Proportional to 615.02, 917.97 and 566.21

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Solution

The fourth proportional to 615.02, 917.97 and 566.21 is: 845.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.02 : 917.97 = 566.21 : x
  2. Step 2: Convert to fraction form
    615.02/917.97 = 566.21/x
  3. Step 3: Cross multiply
    615.02x = 917.97 × 566.21
  4. Step 4: Simplify right side
    615.02x = 519,763.79
  5. Step 5: Solve for x
    x = 519,763.79/615.02
  6. Step 6: Final answer
    x = 845.12

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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.