Home / 388,096.56-581,933.54-135,309.06

Finding the Fourth Proportional to 388,096.56, 581,933.54 and 135,309.06

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Solution

The fourth proportional to 388,096.56, 581,933.54 and 135,309.06 is: 202,889.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,096.56 : 581,933.54 = 135,309.06 : x
  2. Step 2: Convert to fraction form
    388,096.56/581,933.54 = 135,309.06/x
  3. Step 3: Cross multiply
    388,096.56x = 581,933.54 × 135,309.06
  4. Step 4: Simplify right side
    388,096.56x = 78,740,880,618.15
  5. Step 5: Solve for x
    x = 78,740,880,618.15/388,096.56
  6. Step 6: Final answer
    x = 202,889.92

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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.