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Finding the Fourth Proportional to 382.03, 526.43 and 276.93

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Solution

The fourth proportional to 382.03, 526.43 and 276.93 is: 381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    382.03 : 526.43 = 276.93 : x
  2. Step 2: Convert to fraction form
    382.03/526.43 = 276.93/x
  3. Step 3: Cross multiply
    382.03x = 526.43 × 276.93
  4. Step 4: Simplify right side
    382.03x = 145,784.26
  5. Step 5: Solve for x
    x = 145,784.26/382.03
  6. Step 6: Final answer
    x = 381.60

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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.