Home / 278,213.72-383,935.41-150,889.42

Finding the Fourth Proportional to 278,213.72, 383,935.41 and 150,889.42

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Solution

The fourth proportional to 278,213.72, 383,935.41 and 150,889.42 is: 208,227.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,213.72 : 383,935.41 = 150,889.42 : x
  2. Step 2: Convert to fraction form
    278,213.72/383,935.41 = 150,889.42/x
  3. Step 3: Cross multiply
    278,213.72x = 383,935.41 × 150,889.42
  4. Step 4: Simplify right side
    278,213.72x = 57,931,789,412.69
  5. Step 5: Solve for x
    x = 57,931,789,412.69/278,213.72
  6. Step 6: Final answer
    x = 208,227.65

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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.