Home / 338,736.96-507,662.47-138,823.29

Finding the Fourth Proportional to 338,736.96, 507,662.47 and 138,823.29

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Solution

The fourth proportional to 338,736.96, 507,662.47 and 138,823.29 is: 208,053.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,736.96 : 507,662.47 = 138,823.29 : x
  2. Step 2: Convert to fraction form
    338,736.96/507,662.47 = 138,823.29/x
  3. Step 3: Cross multiply
    338,736.96x = 507,662.47 × 138,823.29
  4. Step 4: Simplify right side
    338,736.96x = 70,475,374,294.93
  5. Step 5: Solve for x
    x = 70,475,374,294.93/338,736.96
  6. Step 6: Final answer
    x = 208,053.39

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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.