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Finding the Fourth Proportional to 265,611.60, 398,644.20 and 107,953.20

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Solution

The fourth proportional to 265,611.60, 398,644.20 and 107,953.20 is: 162,021.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,611.60 : 398,644.20 = 107,953.20 : x
  2. Step 2: Convert to fraction form
    265,611.60/398,644.20 = 107,953.20/x
  3. Step 3: Cross multiply
    265,611.60x = 398,644.20 × 107,953.20
  4. Step 4: Simplify right side
    265,611.60x = 43,034,917,051.44
  5. Step 5: Solve for x
    x = 43,034,917,051.44/265,611.60
  6. Step 6: Final answer
    x = 162,021.98

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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.