Home / 331,949.16-458,087.74-188,709.20

Finding the Fourth Proportional to 331,949.16, 458,087.74 and 188,709.20

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Solution

The fourth proportional to 331,949.16, 458,087.74 and 188,709.20 is: 260,417.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,949.16 : 458,087.74 = 188,709.20 : x
  2. Step 2: Convert to fraction form
    331,949.16/458,087.74 = 188,709.20/x
  3. Step 3: Cross multiply
    331,949.16x = 458,087.74 × 188,709.20
  4. Step 4: Simplify right side
    331,949.16x = 86,445,370,945.21
  5. Step 5: Solve for x
    x = 86,445,370,945.21/331,949.16
  6. Step 6: Final answer
    x = 260,417.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.