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Finding the Fourth Proportional to 533.11, 735.52 and 346.75

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Solution

The fourth proportional to 533.11, 735.52 and 346.75 is: 478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.11 : 735.52 = 346.75 : x
  2. Step 2: Convert to fraction form
    533.11/735.52 = 346.75/x
  3. Step 3: Cross multiply
    533.11x = 735.52 × 346.75
  4. Step 4: Simplify right side
    533.11x = 255,041.56
  5. Step 5: Solve for x
    x = 255,041.56/533.11
  6. Step 6: Final answer
    x = 478.40

Related Problems

Find fourth proportional to 266.56, 367.76 and 173.38
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.