Home / 328,090.57-492,204.50-138,551.38

Finding the Fourth Proportional to 328,090.57, 492,204.50 and 138,551.38

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Solution

The fourth proportional to 328,090.57, 492,204.50 and 138,551.38 is: 207,856.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,090.57 : 492,204.50 = 138,551.38 : x
  2. Step 2: Convert to fraction form
    328,090.57/492,204.50 = 138,551.38/x
  3. Step 3: Cross multiply
    328,090.57x = 492,204.50 × 138,551.38
  4. Step 4: Simplify right side
    328,090.57x = 68,195,611,313.51
  5. Step 5: Solve for x
    x = 68,195,611,313.51/328,090.57
  6. Step 6: Final answer
    x = 207,856.06

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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.