Home / 371,739.88-513,005.70-201,976.84

Finding the Fourth Proportional to 371,739.88, 513,005.70 and 201,976.84

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Solution

The fourth proportional to 371,739.88, 513,005.70 and 201,976.84 is: 278,730.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,739.88 : 513,005.70 = 201,976.84 : x
  2. Step 2: Convert to fraction form
    371,739.88/513,005.70 = 201,976.84/x
  3. Step 3: Cross multiply
    371,739.88x = 513,005.70 × 201,976.84
  4. Step 4: Simplify right side
    371,739.88x = 103,615,270,187.99
  5. Step 5: Solve for x
    x = 103,615,270,187.99/371,739.88
  6. Step 6: Final answer
    x = 278,730.57

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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.