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Finding the Fourth Proportional to 235,406.96, 352,999.88 and 85,541.56

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Solution

The fourth proportional to 235,406.96, 352,999.88 and 85,541.56 is: 128,272.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,406.96 : 352,999.88 = 85,541.56 : x
  2. Step 2: Convert to fraction form
    235,406.96/352,999.88 = 85,541.56/x
  3. Step 3: Cross multiply
    235,406.96x = 352,999.88 × 85,541.56
  4. Step 4: Simplify right side
    235,406.96x = 30,196,160,415.01
  5. Step 5: Solve for x
    x = 30,196,160,415.01/235,406.96
  6. Step 6: Final answer
    x = 128,272.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.