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Finding the Fourth Proportional to 260,157.18, 389,925.15 and 133,857.93

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Solution

The fourth proportional to 260,157.18, 389,925.15 and 133,857.93 is: 200,627.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,157.18 : 389,925.15 = 133,857.93 : x
  2. Step 2: Convert to fraction form
    260,157.18/389,925.15 = 133,857.93/x
  3. Step 3: Cross multiply
    260,157.18x = 389,925.15 × 133,857.93
  4. Step 4: Simplify right side
    260,157.18x = 52,194,573,433.94
  5. Step 5: Solve for x
    x = 52,194,573,433.94/260,157.18
  6. Step 6: Final answer
    x = 200,627.07

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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.