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Finding the Fourth Proportional to 548.20, 823.10 and 332.68

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Solution

The fourth proportional to 548.20, 823.10 and 332.68 is: 499.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.20 : 823.10 = 332.68 : x
  2. Step 2: Convert to fraction form
    548.20/823.10 = 332.68/x
  3. Step 3: Cross multiply
    548.20x = 823.10 × 332.68
  4. Step 4: Simplify right side
    548.20x = 273,828.91
  5. Step 5: Solve for x
    x = 273,828.91/548.20
  6. Step 6: Final answer
    x = 499.51

Related Problems

Find fourth proportional to 274.10, 411.55 and 166.34
Half scale
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Double scale
Find fourth proportional to 549.20, 824.60 and 333.68
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.