Home / 379,283.52-523,391.04-218,112.96

Finding the Fourth Proportional to 379,283.52, 523,391.04 and 218,112.96

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Solution

The fourth proportional to 379,283.52, 523,391.04 and 218,112.96 is: 300,984.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,283.52 : 523,391.04 = 218,112.96 : x
  2. Step 2: Convert to fraction form
    379,283.52/523,391.04 = 218,112.96/x
  3. Step 3: Cross multiply
    379,283.52x = 523,391.04 × 218,112.96
  4. Step 4: Simplify right side
    379,283.52x = 114,158,368,971.88
  5. Step 5: Solve for x
    x = 114,158,368,971.88/379,283.52
  6. Step 6: Final answer
    x = 300,984.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.