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Finding the Fourth Proportional to 344,953, 517,431.84 and 131,663.40

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Solution

The fourth proportional to 344,953, 517,431.84 and 131,663.40 is: 197,495.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,953 : 517,431.84 = 131,663.40 : x
  2. Step 2: Convert to fraction form
    344,953/517,431.84 = 131,663.40/x
  3. Step 3: Cross multiply
    344,953x = 517,431.84 × 131,663.40
  4. Step 4: Simplify right side
    344,953x = 68,126,835,322.66
  5. Step 5: Solve for x
    x = 68,126,835,322.66/344,953
  6. Step 6: Final answer
    x = 197,495.99

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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.