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Finding the Fourth Proportional to 247,219.20, 370,828.80 and 247,219.20

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Solution

The fourth proportional to 247,219.20, 370,828.80 and 247,219.20 is: 370,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,219.20 : 370,828.80 = 247,219.20 : x
  2. Step 2: Convert to fraction form
    247,219.20/370,828.80 = 247,219.20/x
  3. Step 3: Cross multiply
    247,219.20x = 370,828.80 × 247,219.20
  4. Step 4: Simplify right side
    247,219.20x = 91,675,999,272.96
  5. Step 5: Solve for x
    x = 91,675,999,272.96/247,219.20
  6. Step 6: Final answer
    x = 370,828.80

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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.