Home / 388,628.82-583,112.79-136,090.56

Finding the Fourth Proportional to 388,628.82, 583,112.79 and 136,090.56

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Solution

The fourth proportional to 388,628.82, 583,112.79 and 136,090.56 is: 204,195.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,628.82 : 583,112.79 = 136,090.56 : x
  2. Step 2: Convert to fraction form
    388,628.82/583,112.79 = 136,090.56/x
  3. Step 3: Cross multiply
    388,628.82x = 583,112.79 × 136,090.56
  4. Step 4: Simplify right side
    388,628.82x = 79,356,148,320.94
  5. Step 5: Solve for x
    x = 79,356,148,320.94/388,628.82
  6. Step 6: Final answer
    x = 204,195.22

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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.