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Finding the Fourth Proportional to 351,673.98, 485,309.40 and 190,533.39

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Solution

The fourth proportional to 351,673.98, 485,309.40 and 190,533.39 is: 262,935.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,673.98 : 485,309.40 = 190,533.39 : x
  2. Step 2: Convert to fraction form
    351,673.98/485,309.40 = 190,533.39/x
  3. Step 3: Cross multiply
    351,673.98x = 485,309.40 × 190,533.39
  4. Step 4: Simplify right side
    351,673.98x = 92,467,645,180.87
  5. Step 5: Solve for x
    x = 92,467,645,180.87/351,673.98
  6. Step 6: Final answer
    x = 262,935.70

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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.