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Finding the Fourth Proportional to 259,401.60, 389,102.40 and 154,166.40

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Solution

The fourth proportional to 259,401.60, 389,102.40 and 154,166.40 is: 231,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,401.60 : 389,102.40 = 154,166.40 : x
  2. Step 2: Convert to fraction form
    259,401.60/389,102.40 = 154,166.40/x
  3. Step 3: Cross multiply
    259,401.60x = 389,102.40 × 154,166.40
  4. Step 4: Simplify right side
    259,401.60x = 59,986,516,239.36
  5. Step 5: Solve for x
    x = 59,986,516,239.36/259,401.60
  6. Step 6: Final answer
    x = 231,249.60

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1.5x scale

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.