Home / 269,322.80-403,498.20-128,771.60

Finding the Fourth Proportional to 269,322.80, 403,498.20 and 128,771.60

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Solution

The fourth proportional to 269,322.80, 403,498.20 and 128,771.60 is: 192,925.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,322.80 : 403,498.20 = 128,771.60 : x
  2. Step 2: Convert to fraction form
    269,322.80/403,498.20 = 128,771.60/x
  3. Step 3: Cross multiply
    269,322.80x = 403,498.20 × 128,771.60
  4. Step 4: Simplify right side
    269,322.80x = 51,959,108,811.12
  5. Step 5: Solve for x
    x = 51,959,108,811.12/269,322.80
  6. Step 6: Final answer
    x = 192,925.03

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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.