Home / 388,097.27-581,499.96-135,238.36

Finding the Fourth Proportional to 388,097.27, 581,499.96 and 135,238.36

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Solution

The fourth proportional to 388,097.27, 581,499.96 and 135,238.36 is: 202,632.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,097.27 : 581,499.96 = 135,238.36 : x
  2. Step 2: Convert to fraction form
    388,097.27/581,499.96 = 135,238.36/x
  3. Step 3: Cross multiply
    388,097.27x = 581,499.96 × 135,238.36
  4. Step 4: Simplify right side
    388,097.27x = 78,641,100,820.60
  5. Step 5: Solve for x
    x = 78,641,100,820.60/388,097.27
  6. Step 6: Final answer
    x = 202,632.45

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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.