Home / 278,386.76-417,575-88,845.60

Finding the Fourth Proportional to 278,386.76, 417,575 and 88,845.60

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Solution

The fourth proportional to 278,386.76, 417,575 and 88,845.60 is: 133,266.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,386.76 : 417,575 = 88,845.60 : x
  2. Step 2: Convert to fraction form
    278,386.76/417,575 = 88,845.60/x
  3. Step 3: Cross multiply
    278,386.76x = 417,575 × 88,845.60
  4. Step 4: Simplify right side
    278,386.76x = 37,099,701,420
  5. Step 5: Solve for x
    x = 37,099,701,420/278,386.76
  6. Step 6: Final answer
    x = 133,266.76

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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.