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Finding the Fourth Proportional to 658.76, 909.11 and 364.03

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Solution

The fourth proportional to 658.76, 909.11 and 364.03 is: 502.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    658.76 : 909.11 = 364.03 : x
  2. Step 2: Convert to fraction form
    658.76/909.11 = 364.03/x
  3. Step 3: Cross multiply
    658.76x = 909.11 × 364.03
  4. Step 4: Simplify right side
    658.76x = 330,939.22
  5. Step 5: Solve for x
    x = 330,939.22/658.76
  6. Step 6: Final answer
    x = 502.36

Related Problems

Find fourth proportional to 329.38, 454.55 and 182.01
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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.