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Finding the Fourth Proportional to 623.75, 934.79 and 277.16

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Solution

The fourth proportional to 623.75, 934.79 and 277.16 is: 415.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.75 : 934.79 = 277.16 : x
  2. Step 2: Convert to fraction form
    623.75/934.79 = 277.16/x
  3. Step 3: Cross multiply
    623.75x = 934.79 × 277.16
  4. Step 4: Simplify right side
    623.75x = 259,080.34
  5. Step 5: Solve for x
    x = 259,080.34/623.75
  6. Step 6: Final answer
    x = 415.36

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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.