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Finding the Fourth Proportional to 270,700.60, 405,176.10 and 211,214.20

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Solution

The fourth proportional to 270,700.60, 405,176.10 and 211,214.20 is: 316,138.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,700.60 : 405,176.10 = 211,214.20 : x
  2. Step 2: Convert to fraction form
    270,700.60/405,176.10 = 211,214.20/x
  3. Step 3: Cross multiply
    270,700.60x = 405,176.10 × 211,214.20
  4. Step 4: Simplify right side
    270,700.60x = 85,578,945,820.62
  5. Step 5: Solve for x
    x = 85,578,945,820.62/270,700.60
  6. Step 6: Final answer
    x = 316,138.74

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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.