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Finding the Fourth Proportional to 623.89, 935.52 and 277.21

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Solution

The fourth proportional to 623.89, 935.52 and 277.21 is: 415.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.89 : 935.52 = 277.21 : x
  2. Step 2: Convert to fraction form
    623.89/935.52 = 277.21/x
  3. Step 3: Cross multiply
    623.89x = 935.52 × 277.21
  4. Step 4: Simplify right side
    623.89x = 259,335.50
  5. Step 5: Solve for x
    x = 259,335.50/623.89
  6. Step 6: Final answer
    x = 415.68

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Double scale
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Similar ratio
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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.