Home / 278,934.33-384,929.91-151,609.62

Finding the Fourth Proportional to 278,934.33, 384,929.91 and 151,609.62

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Solution

The fourth proportional to 278,934.33, 384,929.91 and 151,609.62 is: 209,221.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,934.33 : 384,929.91 = 151,609.62 : x
  2. Step 2: Convert to fraction form
    278,934.33/384,929.91 = 151,609.62/x
  3. Step 3: Cross multiply
    278,934.33x = 384,929.91 × 151,609.62
  4. Step 4: Simplify right side
    278,934.33x = 58,359,077,381.73
  5. Step 5: Solve for x
    x = 58,359,077,381.73/278,934.33
  6. Step 6: Final answer
    x = 209,221.57

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1.5x scale

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.