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Finding the Fourth Proportional to 234,866.31, 324,199.56 and 139,372.98

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Solution

The fourth proportional to 234,866.31, 324,199.56 and 139,372.98 is: 192,384.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,866.31 : 324,199.56 = 139,372.98 : x
  2. Step 2: Convert to fraction form
    234,866.31/324,199.56 = 139,372.98/x
  3. Step 3: Cross multiply
    234,866.31x = 324,199.56 × 139,372.98
  4. Step 4: Simplify right side
    234,866.31x = 45,184,658,791.89
  5. Step 5: Solve for x
    x = 45,184,658,791.89/234,866.31
  6. Step 6: Final answer
    x = 192,384.59

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1.5x scale

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.