Home / 278,933.86-384,929.22-151,609.12

Finding the Fourth Proportional to 278,933.86, 384,929.22 and 151,609.12

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Solution

The fourth proportional to 278,933.86, 384,929.22 and 151,609.12 is: 209,220.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,933.86 : 384,929.22 = 151,609.12 : x
  2. Step 2: Convert to fraction form
    278,933.86/384,929.22 = 151,609.12/x
  3. Step 3: Cross multiply
    278,933.86x = 384,929.22 × 151,609.12
  4. Step 4: Simplify right side
    278,933.86x = 58,358,780,306.49
  5. Step 5: Solve for x
    x = 58,358,780,306.49/278,933.86
  6. Step 6: Final answer
    x = 209,220.85

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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.