Home / 421,112.96-581,195.16-268,102.28

Finding the Fourth Proportional to 421,112.96, 581,195.16 and 268,102.28

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Solution

The fourth proportional to 421,112.96, 581,195.16 and 268,102.28 is: 370,018.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,112.96 : 581,195.16 = 268,102.28 : x
  2. Step 2: Convert to fraction form
    421,112.96/581,195.16 = 268,102.28/x
  3. Step 3: Cross multiply
    421,112.96x = 581,195.16 × 268,102.28
  4. Step 4: Simplify right side
    421,112.96x = 155,819,743,274.48
  5. Step 5: Solve for x
    x = 155,819,743,274.48/421,112.96
  6. Step 6: Final answer
    x = 370,018.87

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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.