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Finding the Fourth Proportional to 281,808.88, 388,936.29 and 174,413.50

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Solution

The fourth proportional to 281,808.88, 388,936.29 and 174,413.50 is: 240,715.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,808.88 : 388,936.29 = 174,413.50 : x
  2. Step 2: Convert to fraction form
    281,808.88/388,936.29 = 174,413.50/x
  3. Step 3: Cross multiply
    281,808.88x = 388,936.29 × 174,413.50
  4. Step 4: Simplify right side
    281,808.88x = 67,835,739,615.92
  5. Step 5: Solve for x
    x = 67,835,739,615.92/281,808.88
  6. Step 6: Final answer
    x = 240,715.41

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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.