Home / 325,338.42-487,158.81-261,811.55

Finding the Fourth Proportional to 325,338.42, 487,158.81 and 261,811.55

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Solution

The fourth proportional to 325,338.42, 487,158.81 and 261,811.55 is: 392,034.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,338.42 : 487,158.81 = 261,811.55 : x
  2. Step 2: Convert to fraction form
    325,338.42/487,158.81 = 261,811.55/x
  3. Step 3: Cross multiply
    325,338.42x = 487,158.81 × 261,811.55
  4. Step 4: Simplify right side
    325,338.42x = 127,543,800,706.46
  5. Step 5: Solve for x
    x = 127,543,800,706.46/325,338.42
  6. Step 6: Final answer
    x = 392,034.24

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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.