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Finding the Fourth Proportional to 342,438.84, 472,755.63 and 206,507.22

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Solution

The fourth proportional to 342,438.84, 472,755.63 and 206,507.22 is: 285,094.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,438.84 : 472,755.63 = 206,507.22 : x
  2. Step 2: Convert to fraction form
    342,438.84/472,755.63 = 206,507.22/x
  3. Step 3: Cross multiply
    342,438.84x = 472,755.63 × 206,507.22
  4. Step 4: Simplify right side
    342,438.84x = 97,627,450,890.65
  5. Step 5: Solve for x
    x = 97,627,450,890.65/342,438.84
  6. Step 6: Final answer
    x = 285,094.56

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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.