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Finding the Fourth Proportional to 351,615.15, 485,228.87 and 190,470.16

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Solution

The fourth proportional to 351,615.15, 485,228.87 and 190,470.16 is: 262,848.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,615.15 : 485,228.87 = 190,470.16 : x
  2. Step 2: Convert to fraction form
    351,615.15/485,228.87 = 190,470.16/x
  3. Step 3: Cross multiply
    351,615.15x = 485,228.87 × 190,470.16
  4. Step 4: Simplify right side
    351,615.15x = 92,421,621,945.36
  5. Step 5: Solve for x
    x = 92,421,621,945.36/351,615.15
  6. Step 6: Final answer
    x = 262,848.80

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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.