Home / 379,324.91-569,072.10-142,669.64

Finding the Fourth Proportional to 379,324.91, 569,072.10 and 142,669.64

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Solution

The fourth proportional to 379,324.91, 569,072.10 and 142,669.64 is: 214,036.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,324.91 : 569,072.10 = 142,669.64 : x
  2. Step 2: Convert to fraction form
    379,324.91/569,072.10 = 142,669.64/x
  3. Step 3: Cross multiply
    379,324.91x = 569,072.10 × 142,669.64
  4. Step 4: Simplify right side
    379,324.91x = 81,189,311,641.04
  5. Step 5: Solve for x
    x = 81,189,311,641.04/379,324.91
  6. Step 6: Final answer
    x = 214,036.33

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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.