Home / 278,947.92-384,950.70-151,623.84

Finding the Fourth Proportional to 278,947.92, 384,950.70 and 151,623.84

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Solution

The fourth proportional to 278,947.92, 384,950.70 and 151,623.84 is: 209,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,947.92 : 384,950.70 = 151,623.84 : x
  2. Step 2: Convert to fraction form
    278,947.92/384,950.70 = 151,623.84/x
  3. Step 3: Cross multiply
    278,947.92x = 384,950.70 × 151,623.84
  4. Step 4: Simplify right side
    278,947.92x = 58,367,703,344.69
  5. Step 5: Solve for x
    x = 58,367,703,344.69/278,947.92
  6. Step 6: Final answer
    x = 209,242.30

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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.