Home / 278,143.04-417,246.60-100,733.60

Finding the Fourth Proportional to 278,143.04, 417,246.60 and 100,733.60

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Solution

The fourth proportional to 278,143.04, 417,246.60 and 100,733.60 is: 151,112.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,143.04 : 417,246.60 = 100,733.60 : x
  2. Step 2: Convert to fraction form
    278,143.04/417,246.60 = 100,733.60/x
  3. Step 3: Cross multiply
    278,143.04x = 417,246.60 × 100,733.60
  4. Step 4: Simplify right side
    278,143.04x = 42,030,752,105.76
  5. Step 5: Solve for x
    x = 42,030,752,105.76/278,143.04
  6. Step 6: Final answer
    x = 151,112.00

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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.