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Finding the Fourth Proportional to 259,630.60, 389,664.60 and 101,972.20

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Solution

The fourth proportional to 259,630.60, 389,664.60 and 101,972.20 is: 153,044.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,630.60 : 389,664.60 = 101,972.20 : x
  2. Step 2: Convert to fraction form
    259,630.60/389,664.60 = 101,972.20/x
  3. Step 3: Cross multiply
    259,630.60x = 389,664.60 × 101,972.20
  4. Step 4: Simplify right side
    259,630.60x = 39,734,956,524.12
  5. Step 5: Solve for x
    x = 39,734,956,524.12/259,630.60
  6. Step 6: Final answer
    x = 153,044.20

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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.