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Finding the Fourth Proportional to 343,670.80, 515,544.60 and 107,011.60

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Solution

The fourth proportional to 343,670.80, 515,544.60 and 107,011.60 is: 160,529.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,670.80 : 515,544.60 = 107,011.60 : x
  2. Step 2: Convert to fraction form
    343,670.80/515,544.60 = 107,011.60/x
  3. Step 3: Cross multiply
    343,670.80x = 515,544.60 × 107,011.60
  4. Step 4: Simplify right side
    343,670.80x = 55,169,252,517.36
  5. Step 5: Solve for x
    x = 55,169,252,517.36/343,670.80
  6. Step 6: Final answer
    x = 160,529.36

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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.