Home / 278,688.24-384,589.89-151,366.50

Finding the Fourth Proportional to 278,688.24, 384,589.89 and 151,366.50

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Solution

The fourth proportional to 278,688.24, 384,589.89 and 151,366.50 is: 208,885.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,688.24 : 384,589.89 = 151,366.50 : x
  2. Step 2: Convert to fraction form
    278,688.24/384,589.89 = 151,366.50/x
  3. Step 3: Cross multiply
    278,688.24x = 384,589.89 × 151,366.50
  4. Step 4: Simplify right side
    278,688.24x = 58,214,025,584.69
  5. Step 5: Solve for x
    x = 58,214,025,584.69/278,688.24
  6. Step 6: Final answer
    x = 208,885.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.