Home / 212,646.88-293,255.57-155,195.20

Finding the Fourth Proportional to 212,646.88, 293,255.57 and 155,195.20

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Solution

The fourth proportional to 212,646.88, 293,255.57 and 155,195.20 is: 214,025.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,646.88 : 293,255.57 = 155,195.20 : x
  2. Step 2: Convert to fraction form
    212,646.88/293,255.57 = 155,195.20/x
  3. Step 3: Cross multiply
    212,646.88x = 293,255.57 × 155,195.20
  4. Step 4: Simplify right side
    212,646.88x = 45,511,856,767.04
  5. Step 5: Solve for x
    x = 45,511,856,767.04/212,646.88
  6. Step 6: Final answer
    x = 214,025.51

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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.