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Finding the Fourth Proportional to 281,376.40, 388,299.24 and 154,051.96

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Solution

The fourth proportional to 281,376.40, 388,299.24 and 154,051.96 is: 212,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,376.40 : 388,299.24 = 154,051.96 : x
  2. Step 2: Convert to fraction form
    281,376.40/388,299.24 = 154,051.96/x
  3. Step 3: Cross multiply
    281,376.40x = 388,299.24 × 154,051.96
  4. Step 4: Simplify right side
    281,376.40x = 59,818,258,988.51
  5. Step 5: Solve for x
    x = 59,818,258,988.51/281,376.40
  6. Step 6: Final answer
    x = 212,591.60

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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.