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Finding the Fourth Proportional to 260,103.27, 390,154.90 and 73,114.77

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Solution

The fourth proportional to 260,103.27, 390,154.90 and 73,114.77 is: 109,672.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,103.27 : 390,154.90 = 73,114.77 : x
  2. Step 2: Convert to fraction form
    260,103.27/390,154.90 = 73,114.77/x
  3. Step 3: Cross multiply
    260,103.27x = 390,154.90 × 73,114.77
  4. Step 4: Simplify right side
    260,103.27x = 28,526,085,777.87
  5. Step 5: Solve for x
    x = 28,526,085,777.87/260,103.27
  6. Step 6: Final answer
    x = 109,672.15

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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.