Home / 210,845.64-290,968-115,353.92

Finding the Fourth Proportional to 210,845.64, 290,968 and 115,353.92

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Solution

The fourth proportional to 210,845.64, 290,968 and 115,353.92 is: 159,188.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,845.64 : 290,968 = 115,353.92 : x
  2. Step 2: Convert to fraction form
    210,845.64/290,968 = 115,353.92/x
  3. Step 3: Cross multiply
    210,845.64x = 290,968 × 115,353.92
  4. Step 4: Simplify right side
    210,845.64x = 33,564,299,394.56
  5. Step 5: Solve for x
    x = 33,564,299,394.56/210,845.64
  6. Step 6: Final answer
    x = 159,188.97

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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.