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Finding the Fourth Proportional to 234,866.81, 324,200.25 and 139,373.48

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Solution

The fourth proportional to 234,866.81, 324,200.25 and 139,373.48 is: 192,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,866.81 : 324,200.25 = 139,373.48 : x
  2. Step 2: Convert to fraction form
    234,866.81/324,200.25 = 139,373.48/x
  3. Step 3: Cross multiply
    234,866.81x = 324,200.25 × 139,373.48
  4. Step 4: Simplify right side
    234,866.81x = 45,184,917,059.37
  5. Step 5: Solve for x
    x = 45,184,917,059.37/234,866.81
  6. Step 6: Final answer
    x = 192,385.28

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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.