Home / 380,286.09-524,801.04-208,201.20

Finding the Fourth Proportional to 380,286.09, 524,801.04 and 208,201.20

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Solution

The fourth proportional to 380,286.09, 524,801.04 and 208,201.20 is: 287,321.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,286.09 : 524,801.04 = 208,201.20 : x
  2. Step 2: Convert to fraction form
    380,286.09/524,801.04 = 208,201.20/x
  3. Step 3: Cross multiply
    380,286.09x = 524,801.04 × 208,201.20
  4. Step 4: Simplify right side
    380,286.09x = 109,264,206,289.25
  5. Step 5: Solve for x
    x = 109,264,206,289.25/380,286.09
  6. Step 6: Final answer
    x = 287,321.07

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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.