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Finding the Fourth Proportional to 524.40, 785.92 and 350.80

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Solution

The fourth proportional to 524.40, 785.92 and 350.80 is: 525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.40 : 785.92 = 350.80 : x
  2. Step 2: Convert to fraction form
    524.40/785.92 = 350.80/x
  3. Step 3: Cross multiply
    524.40x = 785.92 × 350.80
  4. Step 4: Simplify right side
    524.40x = 275,700.74
  5. Step 5: Solve for x
    x = 275,700.74/524.40
  6. Step 6: Final answer
    x = 525.75

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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.