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Finding the Fourth Proportional to 365,688.70, 504,447.31 and 212,709.67

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Solution

The fourth proportional to 365,688.70, 504,447.31 and 212,709.67 is: 293,421.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,688.70 : 504,447.31 = 212,709.67 : x
  2. Step 2: Convert to fraction form
    365,688.70/504,447.31 = 212,709.67/x
  3. Step 3: Cross multiply
    365,688.70x = 504,447.31 × 212,709.67
  4. Step 4: Simplify right side
    365,688.70x = 107,300,820,842.49
  5. Step 5: Solve for x
    x = 107,300,820,842.49/365,688.70
  6. Step 6: Final answer
    x = 293,421.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.