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Finding the Fourth Proportional to 281,283.10, 388,170.03 and 153,957.58

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Solution

The fourth proportional to 281,283.10, 388,170.03 and 153,957.58 is: 212,461.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,283.10 : 388,170.03 = 153,957.58 : x
  2. Step 2: Convert to fraction form
    281,283.10/388,170.03 = 153,957.58/x
  3. Step 3: Cross multiply
    281,283.10x = 388,170.03 × 153,957.58
  4. Step 4: Simplify right side
    281,283.10x = 59,761,718,447.33
  5. Step 5: Solve for x
    x = 59,761,718,447.33/281,283.10
  6. Step 6: Final answer
    x = 212,461.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.