Home / 421,927.14-632,042.64-196,977.18

Finding the Fourth Proportional to 421,927.14, 632,042.64 and 196,977.18

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Solution

The fourth proportional to 421,927.14, 632,042.64 and 196,977.18 is: 295,069.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,927.14 : 632,042.64 = 196,977.18 : x
  2. Step 2: Convert to fraction form
    421,927.14/632,042.64 = 196,977.18/x
  3. Step 3: Cross multiply
    421,927.14x = 632,042.64 × 196,977.18
  4. Step 4: Simplify right side
    421,927.14x = 124,497,976,866.96
  5. Step 5: Solve for x
    x = 124,497,976,866.96/421,927.14
  6. Step 6: Final answer
    x = 295,069.85

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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.