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Finding the Fourth Proportional to 281,797.38, 388,880.19 and 154,475.10

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Solution

The fourth proportional to 281,797.38, 388,880.19 and 154,475.10 is: 213,175.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,797.38 : 388,880.19 = 154,475.10 : x
  2. Step 2: Convert to fraction form
    281,797.38/388,880.19 = 154,475.10/x
  3. Step 3: Cross multiply
    281,797.38x = 388,880.19 × 154,475.10
  4. Step 4: Simplify right side
    281,797.38x = 60,072,306,238.27
  5. Step 5: Solve for x
    x = 60,072,306,238.27/281,797.38
  6. Step 6: Final answer
    x = 213,175.53

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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.