Home / 269,678.70-403,887.33-213,139.35

Finding the Fourth Proportional to 269,678.70, 403,887.33 and 213,139.35

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Solution

The fourth proportional to 269,678.70, 403,887.33 and 213,139.35 is: 319,210.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,678.70 : 403,887.33 = 213,139.35 : x
  2. Step 2: Convert to fraction form
    269,678.70/403,887.33 = 213,139.35/x
  3. Step 3: Cross multiply
    269,678.70x = 403,887.33 × 213,139.35
  4. Step 4: Simplify right side
    269,678.70x = 86,084,282,989.44
  5. Step 5: Solve for x
    x = 86,084,282,989.44/269,678.70
  6. Step 6: Final answer
    x = 319,210.54

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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.