Home / 388,939.54-583,274.37-136,214.45

Finding the Fourth Proportional to 388,939.54, 583,274.37 and 136,214.45

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Solution

The fourth proportional to 388,939.54, 583,274.37 and 136,214.45 is: 204,274.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,939.54 : 583,274.37 = 136,214.45 : x
  2. Step 2: Convert to fraction form
    388,939.54/583,274.37 = 136,214.45/x
  3. Step 3: Cross multiply
    388,939.54x = 583,274.37 × 136,214.45
  4. Step 4: Simplify right side
    388,939.54x = 79,450,397,508.65
  5. Step 5: Solve for x
    x = 79,450,397,508.65/388,939.54
  6. Step 6: Final answer
    x = 204,274.42

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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.