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Finding the Fourth Proportional to 832.64, 1,248.93 and 255.50

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Solution

The fourth proportional to 832.64, 1,248.93 and 255.50 is: 383.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.64 : 1,248.93 = 255.50 : x
  2. Step 2: Convert to fraction form
    832.64/1,248.93 = 255.50/x
  3. Step 3: Cross multiply
    832.64x = 1,248.93 × 255.50
  4. Step 4: Simplify right side
    832.64x = 319,101.62
  5. Step 5: Solve for x
    x = 319,101.62/832.64
  6. Step 6: Final answer
    x = 383.24

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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.