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Finding the Fourth Proportional to 655,291.80, 982,938.06 and 181,977.12

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Solution

The fourth proportional to 655,291.80, 982,938.06 and 181,977.12 is: 272,965.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,291.80 : 982,938.06 = 181,977.12 : x
  2. Step 2: Convert to fraction form
    655,291.80/982,938.06 = 181,977.12/x
  3. Step 3: Cross multiply
    655,291.80x = 982,938.06 × 181,977.12
  4. Step 4: Simplify right side
    655,291.80x = 178,872,237,297.19
  5. Step 5: Solve for x
    x = 178,872,237,297.19/655,291.80
  6. Step 6: Final answer
    x = 272,965.78

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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.