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Finding the Fourth Proportional to 343,811, 515,729.46 and 107,152.76

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Solution

The fourth proportional to 343,811, 515,729.46 and 107,152.76 is: 160,733.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,811 : 515,729.46 = 107,152.76 : x
  2. Step 2: Convert to fraction form
    343,811/515,729.46 = 107,152.76/x
  3. Step 3: Cross multiply
    343,811x = 515,729.46 × 107,152.76
  4. Step 4: Simplify right side
    343,811x = 55,261,835,052.31
  5. Step 5: Solve for x
    x = 55,261,835,052.31/343,811
  6. Step 6: Final answer
    x = 160,733.18

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1.5x scale

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.