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Finding the Fourth Proportional to 260,100.59, 390,150.89 and 73,112.09

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Solution

The fourth proportional to 260,100.59, 390,150.89 and 73,112.09 is: 109,668.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,100.59 : 390,150.89 = 73,112.09 : x
  2. Step 2: Convert to fraction form
    260,100.59/390,150.89 = 73,112.09/x
  3. Step 3: Cross multiply
    260,100.59x = 390,150.89 × 73,112.09
  4. Step 4: Simplify right side
    260,100.59x = 28,524,746,983.26
  5. Step 5: Solve for x
    x = 28,524,746,983.26/260,100.59
  6. Step 6: Final answer
    x = 109,668.14

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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.