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Finding the Fourth Proportional to 676.25, 933.07 and 381.52

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Solution

The fourth proportional to 676.25, 933.07 and 381.52 is: 526.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.25 : 933.07 = 381.52 : x
  2. Step 2: Convert to fraction form
    676.25/933.07 = 381.52/x
  3. Step 3: Cross multiply
    676.25x = 933.07 × 381.52
  4. Step 4: Simplify right side
    676.25x = 355,985.79
  5. Step 5: Solve for x
    x = 355,985.79/676.25
  6. Step 6: Final answer
    x = 526.41

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1.5x scale

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.