Home / 378,382.04-522,170.74-208,622.20

Finding the Fourth Proportional to 378,382.04, 522,170.74 and 208,622.20

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Solution

The fourth proportional to 378,382.04, 522,170.74 and 208,622.20 is: 287,900.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,382.04 : 522,170.74 = 208,622.20 : x
  2. Step 2: Convert to fraction form
    378,382.04/522,170.74 = 208,622.20/x
  3. Step 3: Cross multiply
    378,382.04x = 522,170.74 × 208,622.20
  4. Step 4: Simplify right side
    378,382.04x = 108,936,408,554.43
  5. Step 5: Solve for x
    x = 108,936,408,554.43/378,382.04
  6. Step 6: Final answer
    x = 287,900.58

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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.