Home / 315,012.26-472,474.13-90,391.83

Finding the Fourth Proportional to 315,012.26, 472,474.13 and 90,391.83

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Solution

The fourth proportional to 315,012.26, 472,474.13 and 90,391.83 is: 135,575.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,012.26 : 472,474.13 = 90,391.83 : x
  2. Step 2: Convert to fraction form
    315,012.26/472,474.13 = 90,391.83/x
  3. Step 3: Cross multiply
    315,012.26x = 472,474.13 × 90,391.83
  4. Step 4: Simplify right side
    315,012.26x = 42,707,801,238.36
  5. Step 5: Solve for x
    x = 42,707,801,238.36/315,012.26
  6. Step 6: Final answer
    x = 135,575.04

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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.