Home / 211,519.40-317,279.10-202,188.20

Finding the Fourth Proportional to 211,519.40, 317,279.10 and 202,188.20

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Solution

The fourth proportional to 211,519.40, 317,279.10 and 202,188.20 is: 303,282.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,519.40 : 317,279.10 = 202,188.20 : x
  2. Step 2: Convert to fraction form
    211,519.40/317,279.10 = 202,188.20/x
  3. Step 3: Cross multiply
    211,519.40x = 317,279.10 × 202,188.20
  4. Step 4: Simplify right side
    211,519.40x = 64,150,090,126.62
  5. Step 5: Solve for x
    x = 64,150,090,126.62/211,519.40
  6. Step 6: Final answer
    x = 303,282.30

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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.