Home / 380,256.20-524,751.60-208,189.80

Finding the Fourth Proportional to 380,256.20, 524,751.60 and 208,189.80

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Solution

The fourth proportional to 380,256.20, 524,751.60 and 208,189.80 is: 287,300.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,256.20 : 524,751.60 = 208,189.80 : x
  2. Step 2: Convert to fraction form
    380,256.20/524,751.60 = 208,189.80/x
  3. Step 3: Cross multiply
    380,256.20x = 524,751.60 × 208,189.80
  4. Step 4: Simplify right side
    380,256.20x = 109,247,930,653.68
  5. Step 5: Solve for x
    x = 109,247,930,653.68/380,256.20
  6. Step 6: Final answer
    x = 287,300.85

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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.