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Finding the Fourth Proportional to 281,202.36, 388,059.24 and 153,877.96

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Solution

The fourth proportional to 281,202.36, 388,059.24 and 153,877.96 is: 212,351.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,202.36 : 388,059.24 = 153,877.96 : x
  2. Step 2: Convert to fraction form
    281,202.36/388,059.24 = 153,877.96/x
  3. Step 3: Cross multiply
    281,202.36x = 388,059.24 × 153,877.96
  4. Step 4: Simplify right side
    281,202.36x = 59,713,764,210.35
  5. Step 5: Solve for x
    x = 59,713,764,210.35/281,202.36
  6. Step 6: Final answer
    x = 212,351.58

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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.