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Finding the Fourth Proportional to 260,150.01, 390,262.22 and 80,250.63

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Solution

The fourth proportional to 260,150.01, 390,262.22 and 80,250.63 is: 120,387.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,150.01 : 390,262.22 = 80,250.63 : x
  2. Step 2: Convert to fraction form
    260,150.01/390,262.22 = 80,250.63/x
  3. Step 3: Cross multiply
    260,150.01x = 390,262.22 × 80,250.63
  4. Step 4: Simplify right side
    260,150.01x = 31,318,788,618.95
  5. Step 5: Solve for x
    x = 31,318,788,618.95/260,150.01
  6. Step 6: Final answer
    x = 120,387.42

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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.