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Finding the Fourth Proportional to 487,677.60, 731,224.80 and 251,481.60

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Solution

The fourth proportional to 487,677.60, 731,224.80 and 251,481.60 is: 377,072.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,677.60 : 731,224.80 = 251,481.60 : x
  2. Step 2: Convert to fraction form
    487,677.60/731,224.80 = 251,481.60/x
  3. Step 3: Cross multiply
    487,677.60x = 731,224.80 × 251,481.60
  4. Step 4: Simplify right side
    487,677.60x = 183,889,582,663.68
  5. Step 5: Solve for x
    x = 183,889,582,663.68/487,677.60
  6. Step 6: Final answer
    x = 377,072.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.