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Finding the Fourth Proportional to 247,546.21, 370,986.71 and 135,057.86

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Solution

The fourth proportional to 247,546.21, 370,986.71 and 135,057.86 is: 202,405.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,546.21 : 370,986.71 = 135,057.86 : x
  2. Step 2: Convert to fraction form
    247,546.21/370,986.71 = 135,057.86/x
  3. Step 3: Cross multiply
    247,546.21x = 370,986.71 × 135,057.86
  4. Step 4: Simplify right side
    247,546.21x = 50,104,671,393.22
  5. Step 5: Solve for x
    x = 50,104,671,393.22/247,546.21
  6. Step 6: Final answer
    x = 202,405.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.