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Finding the Fourth Proportional to 653.99, 981.02 and 167.05

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Solution

The fourth proportional to 653.99, 981.02 and 167.05 is: 250.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.99 : 981.02 = 167.05 : x
  2. Step 2: Convert to fraction form
    653.99/981.02 = 167.05/x
  3. Step 3: Cross multiply
    653.99x = 981.02 × 167.05
  4. Step 4: Simplify right side
    653.99x = 163,879.39
  5. Step 5: Solve for x
    x = 163,879.39/653.99
  6. Step 6: Final answer
    x = 250.58

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Half scale
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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.