Home / 258,176.06-387,415.66-108,404.83

Finding the Fourth Proportional to 258,176.06, 387,415.66 and 108,404.83

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Solution

The fourth proportional to 258,176.06, 387,415.66 and 108,404.83 is: 162,670.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,176.06 : 387,415.66 = 108,404.83 : x
  2. Step 2: Convert to fraction form
    258,176.06/387,415.66 = 108,404.83/x
  3. Step 3: Cross multiply
    258,176.06x = 387,415.66 × 108,404.83
  4. Step 4: Simplify right side
    258,176.06x = 41,997,729,178.15
  5. Step 5: Solve for x
    x = 41,997,729,178.15/258,176.06
  6. Step 6: Final answer
    x = 162,670.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.