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Finding the Fourth Proportional to 214,206.60, 321,309.90 and 125,560.20

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Solution

The fourth proportional to 214,206.60, 321,309.90 and 125,560.20 is: 188,340.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,206.60 : 321,309.90 = 125,560.20 : x
  2. Step 2: Convert to fraction form
    214,206.60/321,309.90 = 125,560.20/x
  3. Step 3: Cross multiply
    214,206.60x = 321,309.90 × 125,560.20
  4. Step 4: Simplify right side
    214,206.60x = 40,343,735,305.98
  5. Step 5: Solve for x
    x = 40,343,735,305.98/214,206.60
  6. Step 6: Final answer
    x = 188,340.30

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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.