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Finding the Fourth Proportional to 344,955.62, 517,519.56 and 120,319.28

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Solution

The fourth proportional to 344,955.62, 517,519.56 and 120,319.28 is: 180,508.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,955.62 : 517,519.56 = 120,319.28 : x
  2. Step 2: Convert to fraction form
    344,955.62/517,519.56 = 120,319.28/x
  3. Step 3: Cross multiply
    344,955.62x = 517,519.56 × 120,319.28
  4. Step 4: Simplify right side
    344,955.62x = 62,267,580,845.12
  5. Step 5: Solve for x
    x = 62,267,580,845.12/344,955.62
  6. Step 6: Final answer
    x = 180,508.96

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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.