Home / 338,537.04-507,365.68-138,630.64

Finding the Fourth Proportional to 338,537.04, 507,365.68 and 138,630.64

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Solution

The fourth proportional to 338,537.04, 507,365.68 and 138,630.64 is: 207,765.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,537.04 : 507,365.68 = 138,630.64 : x
  2. Step 2: Convert to fraction form
    338,537.04/507,365.68 = 138,630.64/x
  3. Step 3: Cross multiply
    338,537.04x = 507,365.68 × 138,630.64
  4. Step 4: Simplify right side
    338,537.04x = 70,336,428,932.44
  5. Step 5: Solve for x
    x = 70,336,428,932.44/338,537.04
  6. Step 6: Final answer
    x = 207,765.83

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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.