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Finding the Fourth Proportional to 245,908.40, 368,912.31 and 103,754.03

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Solution

The fourth proportional to 245,908.40, 368,912.31 and 103,754.03 is: 155,652.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,908.40 : 368,912.31 = 103,754.03 : x
  2. Step 2: Convert to fraction form
    245,908.40/368,912.31 = 103,754.03/x
  3. Step 3: Cross multiply
    245,908.40x = 368,912.31 × 103,754.03
  4. Step 4: Simplify right side
    245,908.40x = 38,276,138,879.11
  5. Step 5: Solve for x
    x = 38,276,138,879.11/245,908.40
  6. Step 6: Final answer
    x = 155,652.02

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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.