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Finding the Fourth Proportional to 281,603.02, 388,619.94 and 160,763.98

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Solution

The fourth proportional to 281,603.02, 388,619.94 and 160,763.98 is: 221,858.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,603.02 : 388,619.94 = 160,763.98 : x
  2. Step 2: Convert to fraction form
    281,603.02/388,619.94 = 160,763.98/x
  3. Step 3: Cross multiply
    281,603.02x = 388,619.94 × 160,763.98
  4. Step 4: Simplify right side
    281,603.02x = 62,476,088,261.76
  5. Step 5: Solve for x
    x = 62,476,088,261.76/281,603.02
  6. Step 6: Final answer
    x = 221,858.73

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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.