Home / 205,790.10-308,474.62-139,237.26

Finding the Fourth Proportional to 205,790.10, 308,474.62 and 139,237.26

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Solution

The fourth proportional to 205,790.10, 308,474.62 and 139,237.26 is: 208,713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,790.10 : 308,474.62 = 139,237.26 : x
  2. Step 2: Convert to fraction form
    205,790.10/308,474.62 = 139,237.26/x
  3. Step 3: Cross multiply
    205,790.10x = 308,474.62 × 139,237.26
  4. Step 4: Simplify right side
    205,790.10x = 42,951,160,868.34
  5. Step 5: Solve for x
    x = 42,951,160,868.34/205,790.10
  6. Step 6: Final answer
    x = 208,713.45

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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.