Home / 211,524.57-291,738.92-130,996.80

Finding the Fourth Proportional to 211,524.57, 291,738.92 and 130,996.80

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Solution

The fourth proportional to 211,524.57, 291,738.92 and 130,996.80 is: 180,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,524.57 : 291,738.92 = 130,996.80 : x
  2. Step 2: Convert to fraction form
    211,524.57/291,738.92 = 130,996.80/x
  3. Step 3: Cross multiply
    211,524.57x = 291,738.92 × 130,996.80
  4. Step 4: Simplify right side
    211,524.57x = 38,216,864,300.47
  5. Step 5: Solve for x
    x = 38,216,864,300.47/211,524.57
  6. Step 6: Final answer
    x = 180,673.40

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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.