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Finding the Fourth Proportional to 368,579.38, 508,796.50 and 247,790.73

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Solution

The fourth proportional to 368,579.38, 508,796.50 and 247,790.73 is: 342,056.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,579.38 : 508,796.50 = 247,790.73 : x
  2. Step 2: Convert to fraction form
    368,579.38/508,796.50 = 247,790.73/x
  3. Step 3: Cross multiply
    368,579.38x = 508,796.50 × 247,790.73
  4. Step 4: Simplify right side
    368,579.38x = 126,075,054,884.45
  5. Step 5: Solve for x
    x = 126,075,054,884.45/368,579.38
  6. Step 6: Final answer
    x = 342,056.72

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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.