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Finding the Fourth Proportional to 260,080.94, 390,134.91 and 82,601.84

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Solution

The fourth proportional to 260,080.94, 390,134.91 and 82,601.84 is: 123,907.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,080.94 : 390,134.91 = 82,601.84 : x
  2. Step 2: Convert to fraction form
    260,080.94/390,134.91 = 82,601.84/x
  3. Step 3: Cross multiply
    260,080.94x = 390,134.91 × 82,601.84
  4. Step 4: Simplify right side
    260,080.94x = 32,225,859,463.56
  5. Step 5: Solve for x
    x = 32,225,859,463.56/260,080.94
  6. Step 6: Final answer
    x = 123,907.04

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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.