Home / 386,869.37-580,269.65-134,144.20

Finding the Fourth Proportional to 386,869.37, 580,269.65 and 134,144.20

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Solution

The fourth proportional to 386,869.37, 580,269.65 and 134,144.20 is: 201,204.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,869.37 : 580,269.65 = 134,144.20 : x
  2. Step 2: Convert to fraction form
    386,869.37/580,269.65 = 134,144.20/x
  3. Step 3: Cross multiply
    386,869.37x = 580,269.65 × 134,144.20
  4. Step 4: Simplify right side
    386,869.37x = 77,839,808,415.43
  5. Step 5: Solve for x
    x = 77,839,808,415.43/386,869.37
  6. Step 6: Final answer
    x = 201,204.37

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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.