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Finding the Fourth Proportional to 524.35, 786.21 and 177.59

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Solution

The fourth proportional to 524.35, 786.21 and 177.59 is: 266.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.35 : 786.21 = 177.59 : x
  2. Step 2: Convert to fraction form
    524.35/786.21 = 177.59/x
  3. Step 3: Cross multiply
    524.35x = 786.21 × 177.59
  4. Step 4: Simplify right side
    524.35x = 139,623.03
  5. Step 5: Solve for x
    x = 139,623.03/524.35
  6. Step 6: Final answer
    x = 266.28

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1.5x scale

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.