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Finding the Fourth Proportional to 339.51, 468.54 and 190.14

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Solution

The fourth proportional to 339.51, 468.54 and 190.14 is: 262.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    339.51 : 468.54 = 190.14 : x
  2. Step 2: Convert to fraction form
    339.51/468.54 = 190.14/x
  3. Step 3: Cross multiply
    339.51x = 468.54 × 190.14
  4. Step 4: Simplify right side
    339.51x = 89,088.20
  5. Step 5: Solve for x
    x = 89,088.20/339.51
  6. Step 6: Final answer
    x = 262.40

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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.