Home / 356,730.40-534,922.80-198,791.20

Finding the Fourth Proportional to 356,730.40, 534,922.80 and 198,791.20

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Solution

The fourth proportional to 356,730.40, 534,922.80 and 198,791.20 is: 298,090.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,730.40 : 534,922.80 = 198,791.20 : x
  2. Step 2: Convert to fraction form
    356,730.40/534,922.80 = 198,791.20/x
  3. Step 3: Cross multiply
    356,730.40x = 534,922.80 × 198,791.20
  4. Step 4: Simplify right side
    356,730.40x = 106,337,945,319.36
  5. Step 5: Solve for x
    x = 106,337,945,319.36/356,730.40
  6. Step 6: Final answer
    x = 298,090.51

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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.