Home / 278,328.16-417,491.11-100,793.71

Finding the Fourth Proportional to 278,328.16, 417,491.11 and 100,793.71

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Solution

The fourth proportional to 278,328.16, 417,491.11 and 100,793.71 is: 151,190.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,328.16 : 417,491.11 = 100,793.71 : x
  2. Step 2: Convert to fraction form
    278,328.16/417,491.11 = 100,793.71/x
  3. Step 3: Cross multiply
    278,328.16x = 417,491.11 × 100,793.71
  4. Step 4: Simplify right side
    278,328.16x = 42,080,477,868.92
  5. Step 5: Solve for x
    x = 42,080,477,868.92/278,328.16
  6. Step 6: Final answer
    x = 151,190.16

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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.