Home / 220,938.80-331,451.40-94,578.80

Finding the Fourth Proportional to 220,938.80, 331,451.40 and 94,578.80

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Solution

The fourth proportional to 220,938.80, 331,451.40 and 94,578.80 is: 141,886.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,938.80 : 331,451.40 = 94,578.80 : x
  2. Step 2: Convert to fraction form
    220,938.80/331,451.40 = 94,578.80/x
  3. Step 3: Cross multiply
    220,938.80x = 331,451.40 × 94,578.80
  4. Step 4: Simplify right side
    220,938.80x = 31,348,275,670.32
  5. Step 5: Solve for x
    x = 31,348,275,670.32/220,938.80
  6. Step 6: Final answer
    x = 141,886.69

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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.