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Finding the Fourth Proportional to 459.51, 634.10 and 272.94

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Solution

The fourth proportional to 459.51, 634.10 and 272.94 is: 376.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.51 : 634.10 = 272.94 : x
  2. Step 2: Convert to fraction form
    459.51/634.10 = 272.94/x
  3. Step 3: Cross multiply
    459.51x = 634.10 × 272.94
  4. Step 4: Simplify right side
    459.51x = 173,069.89
  5. Step 5: Solve for x
    x = 173,069.89/459.51
  6. Step 6: Final answer
    x = 376.64

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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.