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Finding the Fourth Proportional to 230,601.95, 345,902.93 and 81,011.15

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Solution

The fourth proportional to 230,601.95, 345,902.93 and 81,011.15 is: 121,516.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,601.95 : 345,902.93 = 81,011.15 : x
  2. Step 2: Convert to fraction form
    230,601.95/345,902.93 = 81,011.15/x
  3. Step 3: Cross multiply
    230,601.95x = 345,902.93 × 81,011.15
  4. Step 4: Simplify right side
    230,601.95x = 28,021,993,742.61
  5. Step 5: Solve for x
    x = 28,021,993,742.61/230,601.95
  6. Step 6: Final answer
    x = 121,516.73

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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.