Home / 338,185.32-507,262.19-138,456.33

Finding the Fourth Proportional to 338,185.32, 507,262.19 and 138,456.33

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Solution

The fourth proportional to 338,185.32, 507,262.19 and 138,456.33 is: 207,678.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,185.32 : 507,262.19 = 138,456.33 : x
  2. Step 2: Convert to fraction form
    338,185.32/507,262.19 = 138,456.33/x
  3. Step 3: Cross multiply
    338,185.32x = 507,262.19 × 138,456.33
  4. Step 4: Simplify right side
    338,185.32x = 70,233,660,482.88
  5. Step 5: Solve for x
    x = 70,233,660,482.88/338,185.32
  6. Step 6: Final answer
    x = 207,678.03

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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.