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Finding the Fourth Proportional to 247,218.90, 370,828.35 and 69,723.60

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Solution

The fourth proportional to 247,218.90, 370,828.35 and 69,723.60 is: 104,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,218.90 : 370,828.35 = 69,723.60 : x
  2. Step 2: Convert to fraction form
    247,218.90/370,828.35 = 69,723.60/x
  3. Step 3: Cross multiply
    247,218.90x = 370,828.35 × 69,723.60
  4. Step 4: Simplify right side
    247,218.90x = 25,855,487,544.06
  5. Step 5: Solve for x
    x = 25,855,487,544.06/247,218.90
  6. Step 6: Final answer
    x = 104,585.40

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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.