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Finding the Fourth Proportional to 659.49, 910.09 and 364.76

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Solution

The fourth proportional to 659.49, 910.09 and 364.76 is: 503.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    659.49 : 910.09 = 364.76 : x
  2. Step 2: Convert to fraction form
    659.49/910.09 = 364.76/x
  3. Step 3: Cross multiply
    659.49x = 910.09 × 364.76
  4. Step 4: Simplify right side
    659.49x = 331,958.05
  5. Step 5: Solve for x
    x = 331,958.05/659.49
  6. Step 6: Final answer
    x = 503.36

Related Problems

Find fourth proportional to 329.75, 455.04 and 182.38
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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.