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Finding the Fourth Proportional to 553.32, 828.90 and 336.12

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Solution

The fourth proportional to 553.32, 828.90 and 336.12 is: 503.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.32 : 828.90 = 336.12 : x
  2. Step 2: Convert to fraction form
    553.32/828.90 = 336.12/x
  3. Step 3: Cross multiply
    553.32x = 828.90 × 336.12
  4. Step 4: Simplify right side
    553.32x = 278,609.87
  5. Step 5: Solve for x
    x = 278,609.87/553.32
  6. Step 6: Final answer
    x = 503.52

Related Problems

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Half scale
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Double scale
Find fourth proportional to 554.32, 830.40 and 337.12
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.