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Finding the Fourth Proportional to 214,422.42, 321,529.64 and 64,634.79

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Solution

The fourth proportional to 214,422.42, 321,529.64 and 64,634.79 is: 96,920.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,422.42 : 321,529.64 = 64,634.79 : x
  2. Step 2: Convert to fraction form
    214,422.42/321,529.64 = 64,634.79/x
  3. Step 3: Cross multiply
    214,422.42x = 321,529.64 × 64,634.79
  4. Step 4: Simplify right side
    214,422.42x = 20,782,000,437.00
  5. Step 5: Solve for x
    x = 20,782,000,437.00/214,422.42
  6. Step 6: Final answer
    x = 96,920.84

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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.