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Finding the Fourth Proportional to 245,765.36, 368,057.55 and 140,264.48

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Solution

The fourth proportional to 245,765.36, 368,057.55 and 140,264.48 is: 210,059.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,765.36 : 368,057.55 = 140,264.48 : x
  2. Step 2: Convert to fraction form
    245,765.36/368,057.55 = 140,264.48/x
  3. Step 3: Cross multiply
    245,765.36x = 368,057.55 × 140,264.48
  4. Step 4: Simplify right side
    245,765.36x = 51,625,400,860.82
  5. Step 5: Solve for x
    x = 51,625,400,860.82/245,765.36
  6. Step 6: Final answer
    x = 210,059.71

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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.