Home / 278,340.48-417,732.12-100,898.10

Finding the Fourth Proportional to 278,340.48, 417,732.12 and 100,898.10

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Solution

The fourth proportional to 278,340.48, 417,732.12 and 100,898.10 is: 151,427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,340.48 : 417,732.12 = 100,898.10 : x
  2. Step 2: Convert to fraction form
    278,340.48/417,732.12 = 100,898.10/x
  3. Step 3: Cross multiply
    278,340.48x = 417,732.12 × 100,898.10
  4. Step 4: Simplify right side
    278,340.48x = 42,148,377,216.97
  5. Step 5: Solve for x
    x = 42,148,377,216.97/278,340.48
  6. Step 6: Final answer
    x = 151,427.41

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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.