Home / 421,105.96-581,185.49-268,095.27

Finding the Fourth Proportional to 421,105.96, 581,185.49 and 268,095.27

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Solution

The fourth proportional to 421,105.96, 581,185.49 and 268,095.27 is: 370,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,105.96 : 581,185.49 = 268,095.27 : x
  2. Step 2: Convert to fraction form
    421,105.96/581,185.49 = 268,095.27/x
  3. Step 3: Cross multiply
    421,105.96x = 581,185.49 × 268,095.27
  4. Step 4: Simplify right side
    421,105.96x = 155,813,080,861.63
  5. Step 5: Solve for x
    x = 155,813,080,861.63/421,105.96
  6. Step 6: Final answer
    x = 370,009.20

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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.