Home / 379,324.29-569,071.16-142,669.02

Finding the Fourth Proportional to 379,324.29, 569,071.16 and 142,669.02

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Solution

The fourth proportional to 379,324.29, 569,071.16 and 142,669.02 is: 214,035.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,324.29 : 569,071.16 = 142,669.02 : x
  2. Step 2: Convert to fraction form
    379,324.29/569,071.16 = 142,669.02/x
  3. Step 3: Cross multiply
    379,324.29x = 569,071.16 × 142,669.02
  4. Step 4: Simplify right side
    379,324.29x = 81,188,822,218.78
  5. Step 5: Solve for x
    x = 81,188,822,218.78/379,324.29
  6. Step 6: Final answer
    x = 214,035.39

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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.