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Finding the Fourth Proportional to 553.83, 763.77 and 364.69

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Solution

The fourth proportional to 553.83, 763.77 and 364.69 is: 502.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.83 : 763.77 = 364.69 : x
  2. Step 2: Convert to fraction form
    553.83/763.77 = 364.69/x
  3. Step 3: Cross multiply
    553.83x = 763.77 × 364.69
  4. Step 4: Simplify right side
    553.83x = 278,539.28
  5. Step 5: Solve for x
    x = 278,539.28/553.83
  6. Step 6: Final answer
    x = 502.93

Related Problems

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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.