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Finding the Fourth Proportional to 607.58, 910.89 and 261.14

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Solution

The fourth proportional to 607.58, 910.89 and 261.14 is: 391.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.58 : 910.89 = 261.14 : x
  2. Step 2: Convert to fraction form
    607.58/910.89 = 261.14/x
  3. Step 3: Cross multiply
    607.58x = 910.89 × 261.14
  4. Step 4: Simplify right side
    607.58x = 237,869.81
  5. Step 5: Solve for x
    x = 237,869.81/607.58
  6. Step 6: Final answer
    x = 391.50

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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.