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Finding the Fourth Proportional to 265,245.52, 397,872.36 and 147,664.20

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Solution

The fourth proportional to 265,245.52, 397,872.36 and 147,664.20 is: 221,498.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,245.52 : 397,872.36 = 147,664.20 : x
  2. Step 2: Convert to fraction form
    265,245.52/397,872.36 = 147,664.20/x
  3. Step 3: Cross multiply
    265,245.52x = 397,872.36 × 147,664.20
  4. Step 4: Simplify right side
    265,245.52x = 58,751,503,741.51
  5. Step 5: Solve for x
    x = 58,751,503,741.51/265,245.52
  6. Step 6: Final answer
    x = 221,498.57

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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.