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Finding the Fourth Proportional to 485,453.52, 728,032.44 and 169,851.60

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Solution

The fourth proportional to 485,453.52, 728,032.44 and 169,851.60 is: 254,725.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,453.52 : 728,032.44 = 169,851.60 : x
  2. Step 2: Convert to fraction form
    485,453.52/728,032.44 = 169,851.60/x
  3. Step 3: Cross multiply
    485,453.52x = 728,032.44 × 169,851.60
  4. Step 4: Simplify right side
    485,453.52x = 123,657,474,785.90
  5. Step 5: Solve for x
    x = 123,657,474,785.90/485,453.52
  6. Step 6: Final answer
    x = 254,725.67

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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.