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Finding the Fourth Proportional to 281,804.06, 388,890.52 and 152,744.64

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Solution

The fourth proportional to 281,804.06, 388,890.52 and 152,744.64 is: 210,788.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,804.06 : 388,890.52 = 152,744.64 : x
  2. Step 2: Convert to fraction form
    281,804.06/388,890.52 = 152,744.64/x
  3. Step 3: Cross multiply
    281,804.06x = 388,890.52 × 152,744.64
  4. Step 4: Simplify right side
    281,804.06x = 59,400,940,636.61
  5. Step 5: Solve for x
    x = 59,400,940,636.61/281,804.06
  6. Step 6: Final answer
    x = 210,788.09

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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.