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Finding the Fourth Proportional to 344,972, 517,460.36 and 131,682.40

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Solution

The fourth proportional to 344,972, 517,460.36 and 131,682.40 is: 197,524.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,972 : 517,460.36 = 131,682.40 : x
  2. Step 2: Convert to fraction form
    344,972/517,460.36 = 131,682.40/x
  3. Step 3: Cross multiply
    344,972x = 517,460.36 × 131,682.40
  4. Step 4: Simplify right side
    344,972x = 68,140,422,109.66
  5. Step 5: Solve for x
    x = 68,140,422,109.66/344,972
  6. Step 6: Final answer
    x = 197,524.50

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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.