Home / 338,103.97-507,404.25-272,338.15

Finding the Fourth Proportional to 338,103.97, 507,404.25 and 272,338.15

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Solution

The fourth proportional to 338,103.97, 507,404.25 and 272,338.15 is: 408,707.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,103.97 : 507,404.25 = 272,338.15 : x
  2. Step 2: Convert to fraction form
    338,103.97/507,404.25 = 272,338.15/x
  3. Step 3: Cross multiply
    338,103.97x = 507,404.25 × 272,338.15
  4. Step 4: Simplify right side
    338,103.97x = 138,185,534,430.01
  5. Step 5: Solve for x
    x = 138,185,534,430.01/338,103.97
  6. Step 6: Final answer
    x = 408,707.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.