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Finding the Fourth Proportional to 631,889.80, 947,834.70 and 211,165.67

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Solution

The fourth proportional to 631,889.80, 947,834.70 and 211,165.67 is: 316,748.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,889.80 : 947,834.70 = 211,165.67 : x
  2. Step 2: Convert to fraction form
    631,889.80/947,834.70 = 211,165.67/x
  3. Step 3: Cross multiply
    631,889.80x = 947,834.70 × 211,165.67
  4. Step 4: Simplify right side
    631,889.80x = 200,150,149,474.75
  5. Step 5: Solve for x
    x = 200,150,149,474.75/631,889.80
  6. Step 6: Final answer
    x = 316,748.51

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Similar ratio
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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.