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Finding the Fourth Proportional to 623.01, 934.56 and 211.98

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Solution

The fourth proportional to 623.01, 934.56 and 211.98 is: 317.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.01 : 934.56 = 211.98 : x
  2. Step 2: Convert to fraction form
    623.01/934.56 = 211.98/x
  3. Step 3: Cross multiply
    623.01x = 934.56 × 211.98
  4. Step 4: Simplify right side
    623.01x = 198,103.36
  5. Step 5: Solve for x
    x = 198,103.36/623.01
  6. Step 6: Final answer
    x = 317.98

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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.