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Finding the Fourth Proportional to 270,306.63, 372,593.72 and 212,854.82

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Solution

The fourth proportional to 270,306.63, 372,593.72 and 212,854.82 is: 293,401.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,306.63 : 372,593.72 = 212,854.82 : x
  2. Step 2: Convert to fraction form
    270,306.63/372,593.72 = 212,854.82/x
  3. Step 3: Cross multiply
    270,306.63x = 372,593.72 × 212,854.82
  4. Step 4: Simplify right side
    270,306.63x = 79,308,367,872.90
  5. Step 5: Solve for x
    x = 79,308,367,872.90/270,306.63
  6. Step 6: Final answer
    x = 293,401.49

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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.