Home / 314,940.42-434,350.39-266,121.21

Finding the Fourth Proportional to 314,940.42, 434,350.39 and 266,121.21

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Solution

The fourth proportional to 314,940.42, 434,350.39 and 266,121.21 is: 367,021.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,940.42 : 434,350.39 = 266,121.21 : x
  2. Step 2: Convert to fraction form
    314,940.42/434,350.39 = 266,121.21/x
  3. Step 3: Cross multiply
    314,940.42x = 434,350.39 × 266,121.21
  4. Step 4: Simplify right side
    314,940.42x = 115,589,850,685.47
  5. Step 5: Solve for x
    x = 115,589,850,685.47/314,940.42
  6. Step 6: Final answer
    x = 367,021.33

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1.5x scale

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.