Home / 331,985.30-458,108.94-188,717.36

Finding the Fourth Proportional to 331,985.30, 458,108.94 and 188,717.36

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Solution

The fourth proportional to 331,985.30, 458,108.94 and 188,717.36 is: 260,412.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,985.30 : 458,108.94 = 188,717.36 : x
  2. Step 2: Convert to fraction form
    331,985.30/458,108.94 = 188,717.36/x
  3. Step 3: Cross multiply
    331,985.30x = 458,108.94 × 188,717.36
  4. Step 4: Simplify right side
    331,985.30x = 86,453,109,749.20
  5. Step 5: Solve for x
    x = 86,453,109,749.20/331,985.30
  6. Step 6: Final answer
    x = 260,412.46

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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.