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Finding the Fourth Proportional to 259,395.60, 389,268.48 and 101,604.48

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Solution

The fourth proportional to 259,395.60, 389,268.48 and 101,604.48 is: 152,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,395.60 : 389,268.48 = 101,604.48 : x
  2. Step 2: Convert to fraction form
    259,395.60/389,268.48 = 101,604.48/x
  3. Step 3: Cross multiply
    259,395.60x = 389,268.48 × 101,604.48
  4. Step 4: Simplify right side
    259,395.60x = 39,551,421,490.79
  5. Step 5: Solve for x
    x = 39,551,421,490.79/259,395.60
  6. Step 6: Final answer
    x = 152,475.30

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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.