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Finding the Fourth Proportional to 342.53, 473.12 and 254.19

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Solution

The fourth proportional to 342.53, 473.12 and 254.19 is: 351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.53 : 473.12 = 254.19 : x
  2. Step 2: Convert to fraction form
    342.53/473.12 = 254.19/x
  3. Step 3: Cross multiply
    342.53x = 473.12 × 254.19
  4. Step 4: Simplify right side
    342.53x = 120,261.10
  5. Step 5: Solve for x
    x = 120,261.10/342.53
  6. Step 6: Final answer
    x = 351.10

Related Problems

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Double scale
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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.