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Finding the Fourth Proportional to 245,960.57, 368,940.87 and 140,705.73

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Solution

The fourth proportional to 245,960.57, 368,940.87 and 140,705.73 is: 211,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,960.57 : 368,940.87 = 140,705.73 : x
  2. Step 2: Convert to fraction form
    245,960.57/368,940.87 = 140,705.73/x
  3. Step 3: Cross multiply
    245,960.57x = 368,940.87 × 140,705.73
  4. Step 4: Simplify right side
    245,960.57x = 51,912,094,440.19
  5. Step 5: Solve for x
    x = 51,912,094,440.19/245,960.57
  6. Step 6: Final answer
    x = 211,058.60

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1.5x scale

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.