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Finding the Fourth Proportional to 501.69, 692.49 and 291.92

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Solution

The fourth proportional to 501.69, 692.49 and 291.92 is: 402.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.69 : 692.49 = 291.92 : x
  2. Step 2: Convert to fraction form
    501.69/692.49 = 291.92/x
  3. Step 3: Cross multiply
    501.69x = 692.49 × 291.92
  4. Step 4: Simplify right side
    501.69x = 202,151.68
  5. Step 5: Solve for x
    x = 202,151.68/501.69
  6. Step 6: Final answer
    x = 402.94

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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.