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Finding the Fourth Proportional to 526.40, 789.60 and 233.84

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Solution

The fourth proportional to 526.40, 789.60 and 233.84 is: 350.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.40 : 789.60 = 233.84 : x
  2. Step 2: Convert to fraction form
    526.40/789.60 = 233.84/x
  3. Step 3: Cross multiply
    526.40x = 789.60 × 233.84
  4. Step 4: Simplify right side
    526.40x = 184,636.12
  5. Step 5: Solve for x
    x = 184,636.12/526.40
  6. Step 6: Final answer
    x = 350.75

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