Home / 211,213.28-316,820.96-53,441.88

Finding the Fourth Proportional to 211,213.28, 316,820.96 and 53,441.88

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Solution

The fourth proportional to 211,213.28, 316,820.96 and 53,441.88 is: 80,163.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,213.28 : 316,820.96 = 53,441.88 : x
  2. Step 2: Convert to fraction form
    211,213.28/316,820.96 = 53,441.88/x
  3. Step 3: Cross multiply
    211,213.28x = 316,820.96 × 53,441.88
  4. Step 4: Simplify right side
    211,213.28x = 16,931,507,458.60
  5. Step 5: Solve for x
    x = 16,931,507,458.60/211,213.28
  6. Step 6: Final answer
    x = 80,163.08

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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.