Home / 278,011.14-383,655.78-150,686.70

Finding the Fourth Proportional to 278,011.14, 383,655.78 and 150,686.70

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Solution

The fourth proportional to 278,011.14, 383,655.78 and 150,686.70 is: 207,947.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,011.14 : 383,655.78 = 150,686.70 : x
  2. Step 2: Convert to fraction form
    278,011.14/383,655.78 = 150,686.70/x
  3. Step 3: Cross multiply
    278,011.14x = 383,655.78 × 150,686.70
  4. Step 4: Simplify right side
    278,011.14x = 57,811,823,424.13
  5. Step 5: Solve for x
    x = 57,811,823,424.13/278,011.14
  6. Step 6: Final answer
    x = 207,947.87

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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.