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Finding the Fourth Proportional to 617.76, 852.26 and 369.02

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Solution

The fourth proportional to 617.76, 852.26 and 369.02 is: 509.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.76 : 852.26 = 369.02 : x
  2. Step 2: Convert to fraction form
    617.76/852.26 = 369.02/x
  3. Step 3: Cross multiply
    617.76x = 852.26 × 369.02
  4. Step 4: Simplify right side
    617.76x = 314,501.27
  5. Step 5: Solve for x
    x = 314,501.27/617.76
  6. Step 6: Final answer
    x = 509.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.