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Finding the Fourth Proportional to 338,737.96, 507,663.97 and 138,824.29

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Solution

The fourth proportional to 338,737.96, 507,663.97 and 138,824.29 is: 208,054.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,737.96 : 507,663.97 = 138,824.29 : x
  2. Step 2: Convert to fraction form
    338,737.96/507,663.97 = 138,824.29/x
  3. Step 3: Cross multiply
    338,737.96x = 507,663.97 × 138,824.29
  4. Step 4: Simplify right side
    338,737.96x = 70,476,090,193.83
  5. Step 5: Solve for x
    x = 70,476,090,193.83/338,737.96
  6. Step 6: Final answer
    x = 208,054.89

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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.