Home / 205,790.58-308,475.38-139,237.74

Finding the Fourth Proportional to 205,790.58, 308,475.38 and 139,237.74

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Solution

The fourth proportional to 205,790.58, 308,475.38 and 139,237.74 is: 208,714.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,790.58 : 308,475.38 = 139,237.74 : x
  2. Step 2: Convert to fraction form
    205,790.58/308,475.38 = 139,237.74/x
  3. Step 3: Cross multiply
    205,790.58x = 308,475.38 × 139,237.74
  4. Step 4: Simplify right side
    205,790.58x = 42,951,414,756.84
  5. Step 5: Solve for x
    x = 42,951,414,756.84/205,790.58
  6. Step 6: Final answer
    x = 208,714.19

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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.