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Finding the Fourth Proportional to 281,574.53, 388,582.52 and 154,250.09

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Solution

The fourth proportional to 281,574.53, 388,582.52 and 154,250.09 is: 212,870.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,574.53 : 388,582.52 = 154,250.09 : x
  2. Step 2: Convert to fraction form
    281,574.53/388,582.52 = 154,250.09/x
  3. Step 3: Cross multiply
    281,574.53x = 388,582.52 × 154,250.09
  4. Step 4: Simplify right side
    281,574.53x = 59,938,885,968.26
  5. Step 5: Solve for x
    x = 59,938,885,968.26/281,574.53
  6. Step 6: Final answer
    x = 212,870.41

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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.