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Finding the Fourth Proportional to 245,782.79, 368,694.08 and 68,289.82

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Solution

The fourth proportional to 245,782.79, 368,694.08 and 68,289.82 is: 102,440.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,782.79 : 368,694.08 = 68,289.82 : x
  2. Step 2: Convert to fraction form
    245,782.79/368,694.08 = 68,289.82/x
  3. Step 3: Cross multiply
    245,782.79x = 368,694.08 × 68,289.82
  4. Step 4: Simplify right side
    245,782.79x = 25,178,051,351.17
  5. Step 5: Solve for x
    x = 25,178,051,351.17/245,782.79
  6. Step 6: Final answer
    x = 102,440.25

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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.