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Finding the Fourth Proportional to 607.17, 910.53 and 217.11

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Solution

The fourth proportional to 607.17, 910.53 and 217.11 is: 325.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.17 : 910.53 = 217.11 : x
  2. Step 2: Convert to fraction form
    607.17/910.53 = 217.11/x
  3. Step 3: Cross multiply
    607.17x = 910.53 × 217.11
  4. Step 4: Simplify right side
    607.17x = 197,685.17
  5. Step 5: Solve for x
    x = 197,685.17/607.17
  6. Step 6: Final answer
    x = 325.58

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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.