Home / 316,861.20-474,514.20-211,107.60

Finding the Fourth Proportional to 316,861.20, 474,514.20 and 211,107.60

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Solution

The fourth proportional to 316,861.20, 474,514.20 and 211,107.60 is: 316,143.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,861.20 : 474,514.20 = 211,107.60 : x
  2. Step 2: Convert to fraction form
    316,861.20/474,514.20 = 211,107.60/x
  3. Step 3: Cross multiply
    316,861.20x = 474,514.20 × 211,107.60
  4. Step 4: Simplify right side
    316,861.20x = 100,173,553,927.92
  5. Step 5: Solve for x
    x = 100,173,553,927.92/316,861.20
  6. Step 6: Final answer
    x = 316,143.33

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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.