Home / 306,137.67-422,475.05-168,322.41

Finding the Fourth Proportional to 306,137.67, 422,475.05 and 168,322.41

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Solution

The fourth proportional to 306,137.67, 422,475.05 and 168,322.41 is: 232,287.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,137.67 : 422,475.05 = 168,322.41 : x
  2. Step 2: Convert to fraction form
    306,137.67/422,475.05 = 168,322.41/x
  3. Step 3: Cross multiply
    306,137.67x = 422,475.05 × 168,322.41
  4. Step 4: Simplify right side
    306,137.67x = 71,112,018,580.87
  5. Step 5: Solve for x
    x = 71,112,018,580.87/306,137.67
  6. Step 6: Final answer
    x = 232,287.71

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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.