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Finding the Fourth Proportional to 482.76, 665.67 and 372.51

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Solution

The fourth proportional to 482.76, 665.67 and 372.51 is: 513.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.76 : 665.67 = 372.51 : x
  2. Step 2: Convert to fraction form
    482.76/665.67 = 372.51/x
  3. Step 3: Cross multiply
    482.76x = 665.67 × 372.51
  4. Step 4: Simplify right side
    482.76x = 247,968.73
  5. Step 5: Solve for x
    x = 247,968.73/482.76
  6. Step 6: Final answer
    x = 513.65

Related Problems

Find fourth proportional to 241.38, 332.84 and 186.26
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.