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Finding the Fourth Proportional to 482.82, 665.75 and 412.76

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Solution

The fourth proportional to 482.82, 665.75 and 412.76 is: 569.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.82 : 665.75 = 412.76 : x
  2. Step 2: Convert to fraction form
    482.82/665.75 = 412.76/x
  3. Step 3: Cross multiply
    482.82x = 665.75 × 412.76
  4. Step 4: Simplify right side
    482.82x = 274,794.97
  5. Step 5: Solve for x
    x = 274,794.97/482.82
  6. Step 6: Final answer
    x = 569.15

Related Problems

Find fourth proportional to 241.41, 332.88 and 206.38
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Double scale
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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.