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Finding the Fourth Proportional to 360,930.70, 498,040.32 and 208,018.36

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Solution

The fourth proportional to 360,930.70, 498,040.32 and 208,018.36 is: 287,039.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,930.70 : 498,040.32 = 208,018.36 : x
  2. Step 2: Convert to fraction form
    360,930.70/498,040.32 = 208,018.36/x
  3. Step 3: Cross multiply
    360,930.70x = 498,040.32 × 208,018.36
  4. Step 4: Simplify right side
    360,930.70x = 103,601,530,580.28
  5. Step 5: Solve for x
    x = 103,601,530,580.28/360,930.70
  6. Step 6: Final answer
    x = 287,039.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.