Home / 278,909.92-384,898.08-151,585.52

Finding the Fourth Proportional to 278,909.92, 384,898.08 and 151,585.52

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Solution

The fourth proportional to 278,909.92, 384,898.08 and 151,585.52 is: 209,189.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,909.92 : 384,898.08 = 151,585.52 : x
  2. Step 2: Convert to fraction form
    278,909.92/384,898.08 = 151,585.52/x
  3. Step 3: Cross multiply
    278,909.92x = 384,898.08 × 151,585.52
  4. Step 4: Simplify right side
    278,909.92x = 58,344,975,603.80
  5. Step 5: Solve for x
    x = 58,344,975,603.80/278,909.92
  6. Step 6: Final answer
    x = 209,189.32

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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.