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Finding the Fourth Proportional to 524.02, 785.36 and 263.76

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Solution

The fourth proportional to 524.02, 785.36 and 263.76 is: 395.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.02 : 785.36 = 263.76 : x
  2. Step 2: Convert to fraction form
    524.02/785.36 = 263.76/x
  3. Step 3: Cross multiply
    524.02x = 785.36 × 263.76
  4. Step 4: Simplify right side
    524.02x = 207,146.55
  5. Step 5: Solve for x
    x = 207,146.55/524.02
  6. Step 6: Final answer
    x = 395.30

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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.