Home / 278,731.78-384,703.76-181,767.29

Finding the Fourth Proportional to 278,731.78, 384,703.76 and 181,767.29

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Solution

The fourth proportional to 278,731.78, 384,703.76 and 181,767.29 is: 250,874.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,731.78 : 384,703.76 = 181,767.29 : x
  2. Step 2: Convert to fraction form
    278,731.78/384,703.76 = 181,767.29/x
  3. Step 3: Cross multiply
    278,731.78x = 384,703.76 × 181,767.29
  4. Step 4: Simplify right side
    278,731.78x = 69,926,558,438.91
  5. Step 5: Solve for x
    x = 69,926,558,438.91/278,731.78
  6. Step 6: Final answer
    x = 250,874.01

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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.