Home / 387,912.03-581,844.41-185,651.92

Finding the Fourth Proportional to 387,912.03, 581,844.41 and 185,651.92

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Solution

The fourth proportional to 387,912.03, 581,844.41 and 185,651.92 is: 278,466.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,912.03 : 581,844.41 = 185,651.92 : x
  2. Step 2: Convert to fraction form
    387,912.03/581,844.41 = 185,651.92/x
  3. Step 3: Cross multiply
    387,912.03x = 581,844.41 × 185,651.92
  4. Step 4: Simplify right side
    387,912.03x = 108,020,531,857.77
  5. Step 5: Solve for x
    x = 108,020,531,857.77/387,912.03
  6. Step 6: Final answer
    x = 278,466.57

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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.