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Finding the Fourth Proportional to 630.54, 945.75 and 197.67

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Solution

The fourth proportional to 630.54, 945.75 and 197.67 is: 296.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.54 : 945.75 = 197.67 : x
  2. Step 2: Convert to fraction form
    630.54/945.75 = 197.67/x
  3. Step 3: Cross multiply
    630.54x = 945.75 × 197.67
  4. Step 4: Simplify right side
    630.54x = 186,946.40
  5. Step 5: Solve for x
    x = 186,946.40/630.54
  6. Step 6: Final answer
    x = 296.49

Related Problems

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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.