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Finding the Fourth Proportional to 607.11, 910.62 and 174.21

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Solution

The fourth proportional to 607.11, 910.62 and 174.21 is: 261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.11 : 910.62 = 174.21 : x
  2. Step 2: Convert to fraction form
    607.11/910.62 = 174.21/x
  3. Step 3: Cross multiply
    607.11x = 910.62 × 174.21
  4. Step 4: Simplify right side
    607.11x = 158,639.11
  5. Step 5: Solve for x
    x = 158,639.11/607.11
  6. Step 6: Final answer
    x = 261.30

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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.