Home / 342,137.28-472,141.08-189,171.59

Finding the Fourth Proportional to 342,137.28, 472,141.08 and 189,171.59

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Solution

The fourth proportional to 342,137.28, 472,141.08 and 189,171.59 is: 261,052.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,137.28 : 472,141.08 = 189,171.59 : x
  2. Step 2: Convert to fraction form
    342,137.28/472,141.08 = 189,171.59/x
  3. Step 3: Cross multiply
    342,137.28x = 472,141.08 × 189,171.59
  4. Step 4: Simplify right side
    342,137.28x = 89,315,676,447.21
  5. Step 5: Solve for x
    x = 89,315,676,447.21/342,137.28
  6. Step 6: Final answer
    x = 261,052.16

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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.