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Finding the Fourth Proportional to 522.37, 721.35 and 336.29

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Solution

The fourth proportional to 522.37, 721.35 and 336.29 is: 464.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.37 : 721.35 = 336.29 : x
  2. Step 2: Convert to fraction form
    522.37/721.35 = 336.29/x
  3. Step 3: Cross multiply
    522.37x = 721.35 × 336.29
  4. Step 4: Simplify right side
    522.37x = 242,581.11
  5. Step 5: Solve for x
    x = 242,581.11/522.37
  6. Step 6: Final answer
    x = 464.39

Related Problems

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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.