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Finding the Fourth Proportional to 338,389.50, 507,648.26 and 136,001.32

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Solution

The fourth proportional to 338,389.50, 507,648.26 and 136,001.32 is: 204,027.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,389.50 : 507,648.26 = 136,001.32 : x
  2. Step 2: Convert to fraction form
    338,389.50/507,648.26 = 136,001.32/x
  3. Step 3: Cross multiply
    338,389.50x = 507,648.26 × 136,001.32
  4. Step 4: Simplify right side
    338,389.50x = 69,040,833,455.70
  5. Step 5: Solve for x
    x = 69,040,833,455.70/338,389.50
  6. Step 6: Final answer
    x = 204,027.71

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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.