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Finding the Fourth Proportional to 459.88, 634.63 and 250.05

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Solution

The fourth proportional to 459.88, 634.63 and 250.05 is: 345.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.88 : 634.63 = 250.05 : x
  2. Step 2: Convert to fraction form
    459.88/634.63 = 250.05/x
  3. Step 3: Cross multiply
    459.88x = 634.63 × 250.05
  4. Step 4: Simplify right side
    459.88x = 158,689.23
  5. Step 5: Solve for x
    x = 158,689.23/459.88
  6. Step 6: Final answer
    x = 345.07

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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.