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Finding the Fourth Proportional to 343,477.73, 515,118.15 and 115,748.46

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Solution

The fourth proportional to 343,477.73, 515,118.15 and 115,748.46 is: 173,589.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,477.73 : 515,118.15 = 115,748.46 : x
  2. Step 2: Convert to fraction form
    343,477.73/515,118.15 = 115,748.46/x
  3. Step 3: Cross multiply
    343,477.73x = 515,118.15 × 115,748.46
  4. Step 4: Simplify right side
    343,477.73x = 59,624,132,580.55
  5. Step 5: Solve for x
    x = 59,624,132,580.55/343,477.73
  6. Step 6: Final answer
    x = 173,589.51

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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.