Home / 279,157.05-385,217.78-151,829.91

Finding the Fourth Proportional to 279,157.05, 385,217.78 and 151,829.91

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Solution

The fourth proportional to 279,157.05, 385,217.78 and 151,829.91 is: 209,514.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,157.05 : 385,217.78 = 151,829.91 : x
  2. Step 2: Convert to fraction form
    279,157.05/385,217.78 = 151,829.91/x
  3. Step 3: Cross multiply
    279,157.05x = 385,217.78 × 151,829.91
  4. Step 4: Simplify right side
    279,157.05x = 58,487,580,108.65
  5. Step 5: Solve for x
    x = 58,487,580,108.65/279,157.05
  6. Step 6: Final answer
    x = 209,514.97

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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.