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Finding the Fourth Proportional to 185,362.40, 278,043.60 and 67,037.60

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Solution

The fourth proportional to 185,362.40, 278,043.60 and 67,037.60 is: 100,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,362.40 : 278,043.60 = 67,037.60 : x
  2. Step 2: Convert to fraction form
    185,362.40/278,043.60 = 67,037.60/x
  3. Step 3: Cross multiply
    185,362.40x = 278,043.60 × 67,037.60
  4. Step 4: Simplify right side
    185,362.40x = 18,639,375,639.36
  5. Step 5: Solve for x
    x = 18,639,375,639.36/185,362.40
  6. Step 6: Final answer
    x = 100,556.40

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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.