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Finding the Fourth Proportional to 259,041.75, 388,544.79 and 159,217.35

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Solution

The fourth proportional to 259,041.75, 388,544.79 and 159,217.35 is: 238,815.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,041.75 : 388,544.79 = 159,217.35 : x
  2. Step 2: Convert to fraction form
    259,041.75/388,544.79 = 159,217.35/x
  3. Step 3: Cross multiply
    259,041.75x = 388,544.79 × 159,217.35
  4. Step 4: Simplify right side
    259,041.75x = 61,863,071,820.11
  5. Step 5: Solve for x
    x = 61,863,071,820.11/259,041.75
  6. Step 6: Final answer
    x = 238,815.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.