Home / 208,454.06-312,677.79-66,297.28

Finding the Fourth Proportional to 208,454.06, 312,677.79 and 66,297.28

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Solution

The fourth proportional to 208,454.06, 312,677.79 and 66,297.28 is: 99,444.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,454.06 : 312,677.79 = 66,297.28 : x
  2. Step 2: Convert to fraction form
    208,454.06/312,677.79 = 66,297.28/x
  3. Step 3: Cross multiply
    208,454.06x = 312,677.79 × 66,297.28
  4. Step 4: Simplify right side
    208,454.06x = 20,729,687,135.64
  5. Step 5: Solve for x
    x = 20,729,687,135.64/208,454.06
  6. Step 6: Final answer
    x = 99,444.87

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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.