Home / 315,824.18-435,834.82-172,581.62

Finding the Fourth Proportional to 315,824.18, 435,834.82 and 172,581.62

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Solution

The fourth proportional to 315,824.18, 435,834.82 and 172,581.62 is: 238,161.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,824.18 : 435,834.82 = 172,581.62 : x
  2. Step 2: Convert to fraction form
    315,824.18/435,834.82 = 172,581.62/x
  3. Step 3: Cross multiply
    315,824.18x = 435,834.82 × 172,581.62
  4. Step 4: Simplify right side
    315,824.18x = 75,217,079,288.01
  5. Step 5: Solve for x
    x = 75,217,079,288.01/315,824.18
  6. Step 6: Final answer
    x = 238,161.24

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1.5x scale

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.