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Finding the Fourth Proportional to 338,401.29, 507,557.37 and 161,021.01

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Solution

The fourth proportional to 338,401.29, 507,557.37 and 161,021.01 is: 241,510.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,401.29 : 507,557.37 = 161,021.01 : x
  2. Step 2: Convert to fraction form
    338,401.29/507,557.37 = 161,021.01/x
  3. Step 3: Cross multiply
    338,401.29x = 507,557.37 × 161,021.01
  4. Step 4: Simplify right side
    338,401.29x = 81,727,400,350.34
  5. Step 5: Solve for x
    x = 81,727,400,350.34/338,401.29
  6. Step 6: Final answer
    x = 241,510.31

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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.