Home / 379,493.19-569,321.79-142,835.18

Finding the Fourth Proportional to 379,493.19, 569,321.79 and 142,835.18

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Solution

The fourth proportional to 379,493.19, 569,321.79 and 142,835.18 is: 214,283.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,493.19 : 569,321.79 = 142,835.18 : x
  2. Step 2: Convert to fraction form
    379,493.19/569,321.79 = 142,835.18/x
  3. Step 3: Cross multiply
    379,493.19x = 569,321.79 × 142,835.18
  4. Step 4: Simplify right side
    379,493.19x = 81,319,177,505.96
  5. Step 5: Solve for x
    x = 81,319,177,505.96/379,493.19
  6. Step 6: Final answer
    x = 214,283.63

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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.