Home / 371,857.48-513,167.28-202,091.60

Finding the Fourth Proportional to 371,857.48, 513,167.28 and 202,091.60

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Solution

The fourth proportional to 371,857.48, 513,167.28 and 202,091.60 is: 278,888.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,857.48 : 513,167.28 = 202,091.60 : x
  2. Step 2: Convert to fraction form
    371,857.48/513,167.28 = 202,091.60/x
  3. Step 3: Cross multiply
    371,857.48x = 513,167.28 × 202,091.60
  4. Step 4: Simplify right side
    371,857.48x = 103,706,796,682.85
  5. Step 5: Solve for x
    x = 103,706,796,682.85/371,857.48
  6. Step 6: Final answer
    x = 278,888.56

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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.