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Finding the Fourth Proportional to 260,008.08, 389,981.88 and 73,035.60

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Solution

The fourth proportional to 260,008.08, 389,981.88 and 73,035.60 is: 109,544.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,008.08 : 389,981.88 = 73,035.60 : x
  2. Step 2: Convert to fraction form
    260,008.08/389,981.88 = 73,035.60/x
  3. Step 3: Cross multiply
    260,008.08x = 389,981.88 × 73,035.60
  4. Step 4: Simplify right side
    260,008.08x = 28,482,560,594.93
  5. Step 5: Solve for x
    x = 28,482,560,594.93/260,008.08
  6. Step 6: Final answer
    x = 109,544.91

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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.