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Finding the Fourth Proportional to 281,551.48, 388,541.14 and 154,229.16

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Solution

The fourth proportional to 281,551.48, 388,541.14 and 154,229.16 is: 212,836.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,551.48 : 388,541.14 = 154,229.16 : x
  2. Step 2: Convert to fraction form
    281,551.48/388,541.14 = 154,229.16/x
  3. Step 3: Cross multiply
    281,551.48x = 388,541.14 × 154,229.16
  4. Step 4: Simplify right side
    281,551.48x = 59,924,373,647.64
  5. Step 5: Solve for x
    x = 59,924,373,647.64/281,551.48
  6. Step 6: Final answer
    x = 212,836.29

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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.