Home / 214,971.60-322,603.20-139,908.90

Finding the Fourth Proportional to 214,971.60, 322,603.20 and 139,908.90

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Solution

The fourth proportional to 214,971.60, 322,603.20 and 139,908.90 is: 209,958.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,971.60 : 322,603.20 = 139,908.90 : x
  2. Step 2: Convert to fraction form
    214,971.60/322,603.20 = 139,908.90/x
  3. Step 3: Cross multiply
    214,971.60x = 322,603.20 × 139,908.90
  4. Step 4: Simplify right side
    214,971.60x = 45,135,058,848.48
  5. Step 5: Solve for x
    x = 45,135,058,848.48/214,971.60
  6. Step 6: Final answer
    x = 209,958.24

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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.