Home / 371,786.20-513,068.04-202,020.33

Finding the Fourth Proportional to 371,786.20, 513,068.04 and 202,020.33

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Solution

The fourth proportional to 371,786.20, 513,068.04 and 202,020.33 is: 278,789.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,786.20 : 513,068.04 = 202,020.33 : x
  2. Step 2: Convert to fraction form
    371,786.20/513,068.04 = 202,020.33/x
  3. Step 3: Cross multiply
    371,786.20x = 513,068.04 × 202,020.33
  4. Step 4: Simplify right side
    371,786.20x = 103,650,172,938.98
  5. Step 5: Solve for x
    x = 103,650,172,938.98/371,786.20
  6. Step 6: Final answer
    x = 278,789.72

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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.