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Finding the Fourth Proportional to 234,955.98, 324,091.74 and 139,395

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Solution

The fourth proportional to 234,955.98, 324,091.74 and 139,395 is: 192,277.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,955.98 : 324,091.74 = 139,395 : x
  2. Step 2: Convert to fraction form
    234,955.98/324,091.74 = 139,395/x
  3. Step 3: Cross multiply
    234,955.98x = 324,091.74 × 139,395
  4. Step 4: Simplify right side
    234,955.98x = 45,176,768,097.30
  5. Step 5: Solve for x
    x = 45,176,768,097.30/234,955.98
  6. Step 6: Final answer
    x = 192,277.58

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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.