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Finding the Fourth Proportional to 275,607.06, 380,359.71 and 154,756.41

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Solution

The fourth proportional to 275,607.06, 380,359.71 and 154,756.41 is: 213,576.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,607.06 : 380,359.71 = 154,756.41 : x
  2. Step 2: Convert to fraction form
    275,607.06/380,359.71 = 154,756.41/x
  3. Step 3: Cross multiply
    275,607.06x = 380,359.71 × 154,756.41
  4. Step 4: Simplify right side
    275,607.06x = 58,863,103,228.24
  5. Step 5: Solve for x
    x = 58,863,103,228.24/275,607.06
  6. Step 6: Final answer
    x = 213,576.18

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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.