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Finding the Fourth Proportional to 355,254.75, 490,470.27 and 228,154.41

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Solution

The fourth proportional to 355,254.75, 490,470.27 and 228,154.41 is: 314,993.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,254.75 : 490,470.27 = 228,154.41 : x
  2. Step 2: Convert to fraction form
    355,254.75/490,470.27 = 228,154.41/x
  3. Step 3: Cross multiply
    355,254.75x = 490,470.27 × 228,154.41
  4. Step 4: Simplify right side
    355,254.75x = 111,902,953,933.62
  5. Step 5: Solve for x
    x = 111,902,953,933.62/355,254.75
  6. Step 6: Final answer
    x = 314,993.55

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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.