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Finding the Fourth Proportional to 553.93, 764.40 and 332.75

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Solution

The fourth proportional to 553.93, 764.40 and 332.75 is: 459.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.93 : 764.40 = 332.75 : x
  2. Step 2: Convert to fraction form
    553.93/764.40 = 332.75/x
  3. Step 3: Cross multiply
    553.93x = 764.40 × 332.75
  4. Step 4: Simplify right side
    553.93x = 254,354.10
  5. Step 5: Solve for x
    x = 254,354.10/553.93
  6. Step 6: Final answer
    x = 459.18

Related Problems

Find fourth proportional to 276.97, 382.20 and 166.38
Half scale
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Double scale
Find fourth proportional to 554.93, 765.78 and 333.75
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.