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Finding the Fourth Proportional to 622.13, 933.16 and 378.14

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Solution

The fourth proportional to 622.13, 933.16 and 378.14 is: 567.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.13 : 933.16 = 378.14 : x
  2. Step 2: Convert to fraction form
    622.13/933.16 = 378.14/x
  3. Step 3: Cross multiply
    622.13x = 933.16 × 378.14
  4. Step 4: Simplify right side
    622.13x = 352,865.12
  5. Step 5: Solve for x
    x = 352,865.12/622.13
  6. Step 6: Final answer
    x = 567.19

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Double scale
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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.