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Finding the Fourth Proportional to 531.19, 733.20 and 344.68

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Solution

The fourth proportional to 531.19, 733.20 and 344.68 is: 475.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.19 : 733.20 = 344.68 : x
  2. Step 2: Convert to fraction form
    531.19/733.20 = 344.68/x
  3. Step 3: Cross multiply
    531.19x = 733.20 × 344.68
  4. Step 4: Simplify right side
    531.19x = 252,719.38
  5. Step 5: Solve for x
    x = 252,719.38/531.19
  6. Step 6: Final answer
    x = 475.76

Related Problems

Find fourth proportional to 265.60, 366.60 and 172.34
Half scale
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Double scale
Find fourth proportional to 532.19, 734.58 and 345.68
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.