Home / 378,280.21-522,023.54-206,195.04

Finding the Fourth Proportional to 378,280.21, 522,023.54 and 206,195.04

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Solution

The fourth proportional to 378,280.21, 522,023.54 and 206,195.04 is: 284,547.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,280.21 : 522,023.54 = 206,195.04 : x
  2. Step 2: Convert to fraction form
    378,280.21/522,023.54 = 206,195.04/x
  3. Step 3: Cross multiply
    378,280.21x = 522,023.54 × 206,195.04
  4. Step 4: Simplify right side
    378,280.21x = 107,638,664,711.24
  5. Step 5: Solve for x
    x = 107,638,664,711.24/378,280.21
  6. Step 6: Final answer
    x = 284,547.44

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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.