Home / 279,829.14-386,177.90-157,360.06

Finding the Fourth Proportional to 279,829.14, 386,177.90 and 157,360.06

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Solution

The fourth proportional to 279,829.14, 386,177.90 and 157,360.06 is: 217,164.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,829.14 : 386,177.90 = 157,360.06 : x
  2. Step 2: Convert to fraction form
    279,829.14/386,177.90 = 157,360.06/x
  3. Step 3: Cross multiply
    279,829.14x = 386,177.90 × 157,360.06
  4. Step 4: Simplify right side
    279,829.14x = 60,768,977,514.67
  5. Step 5: Solve for x
    x = 60,768,977,514.67/279,829.14
  6. Step 6: Final answer
    x = 217,164.58

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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.