Home / 351,921.33-485,839.87-275,277.57

Finding the Fourth Proportional to 351,921.33, 485,839.87 and 275,277.57

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Solution

The fourth proportional to 351,921.33, 485,839.87 and 275,277.57 is: 380,030.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,921.33 : 485,839.87 = 275,277.57 : x
  2. Step 2: Convert to fraction form
    351,921.33/485,839.87 = 275,277.57/x
  3. Step 3: Cross multiply
    351,921.33x = 485,839.87 × 275,277.57
  4. Step 4: Simplify right side
    351,921.33x = 133,740,816,312.62
  5. Step 5: Solve for x
    x = 133,740,816,312.62/351,921.33
  6. Step 6: Final answer
    x = 380,030.44

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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.