Home / 315,864.27-435,892.93-172,624.33

Finding the Fourth Proportional to 315,864.27, 435,892.93 and 172,624.33

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Solution

The fourth proportional to 315,864.27, 435,892.93 and 172,624.33 is: 238,221.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,864.27 : 435,892.93 = 172,624.33 : x
  2. Step 2: Convert to fraction form
    315,864.27/435,892.93 = 172,624.33/x
  3. Step 3: Cross multiply
    315,864.27x = 435,892.93 × 172,624.33
  4. Step 4: Simplify right side
    315,864.27x = 75,245,724,992.99
  5. Step 5: Solve for x
    x = 75,245,724,992.99/315,864.27
  6. Step 6: Final answer
    x = 238,221.71

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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.