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Finding the Fourth Proportional to 460,187.88, 635,147.32 and 278,998.60

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Solution

The fourth proportional to 460,187.88, 635,147.32 and 278,998.60 is: 385,071.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,187.88 : 635,147.32 = 278,998.60 : x
  2. Step 2: Convert to fraction form
    460,187.88/635,147.32 = 278,998.60/x
  3. Step 3: Cross multiply
    460,187.88x = 635,147.32 × 278,998.60
  4. Step 4: Simplify right side
    460,187.88x = 177,205,213,073.75
  5. Step 5: Solve for x
    x = 177,205,213,073.75/460,187.88
  6. Step 6: Final answer
    x = 385,071.45

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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.