Home / 278,725.62-384,633.21-151,400.91

Finding the Fourth Proportional to 278,725.62, 384,633.21 and 151,400.91

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Solution

The fourth proportional to 278,725.62, 384,633.21 and 151,400.91 is: 208,928.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,725.62 : 384,633.21 = 151,400.91 : x
  2. Step 2: Convert to fraction form
    278,725.62/384,633.21 = 151,400.91/x
  3. Step 3: Cross multiply
    278,725.62x = 384,633.21 × 151,400.91
  4. Step 4: Simplify right side
    278,725.62x = 58,233,818,010.22
  5. Step 5: Solve for x
    x = 58,233,818,010.22/278,725.62
  6. Step 6: Final answer
    x = 208,928.83

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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.