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Finding the Fourth Proportional to 448,391.56, 618,784.50 and 247,194.76

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Solution

The fourth proportional to 448,391.56, 618,784.50 and 247,194.76 is: 341,131.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,391.56 : 618,784.50 = 247,194.76 : x
  2. Step 2: Convert to fraction form
    448,391.56/618,784.50 = 247,194.76/x
  3. Step 3: Cross multiply
    448,391.56x = 618,784.50 × 247,194.76
  4. Step 4: Simplify right side
    448,391.56x = 152,960,285,969.22
  5. Step 5: Solve for x
    x = 152,960,285,969.22/448,391.56
  6. Step 6: Final answer
    x = 341,131.06

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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.