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Finding the Fourth Proportional to 522.10, 718.86 and 443.25

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Solution

The fourth proportional to 522.10, 718.86 and 443.25 is: 610.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.10 : 718.86 = 443.25 : x
  2. Step 2: Convert to fraction form
    522.10/718.86 = 443.25/x
  3. Step 3: Cross multiply
    522.10x = 718.86 × 443.25
  4. Step 4: Simplify right side
    522.10x = 318,631.94
  5. Step 5: Solve for x
    x = 318,631.94/522.10
  6. Step 6: Final answer
    x = 610.29

Related Problems

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Double scale
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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.