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Finding the Fourth Proportional to 371,074.42, 512,039.46 and 207,739.78

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Solution

The fourth proportional to 371,074.42, 512,039.46 and 207,739.78 is: 286,656.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,074.42 : 512,039.46 = 207,739.78 : x
  2. Step 2: Convert to fraction form
    371,074.42/512,039.46 = 207,739.78/x
  3. Step 3: Cross multiply
    371,074.42x = 512,039.46 × 207,739.78
  4. Step 4: Simplify right side
    371,074.42x = 106,370,964,771.72
  5. Step 5: Solve for x
    x = 106,370,964,771.72/371,074.42
  6. Step 6: Final answer
    x = 286,656.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.