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Finding the Fourth Proportional to 190,651.84, 262,990.22 and 118,907.30

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Solution

The fourth proportional to 190,651.84, 262,990.22 and 118,907.30 is: 164,023.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,651.84 : 262,990.22 = 118,907.30 : x
  2. Step 2: Convert to fraction form
    190,651.84/262,990.22 = 118,907.30/x
  3. Step 3: Cross multiply
    190,651.84x = 262,990.22 × 118,907.30
  4. Step 4: Simplify right side
    190,651.84x = 31,271,457,941.35
  5. Step 5: Solve for x
    x = 31,271,457,941.35/190,651.84
  6. Step 6: Final answer
    x = 164,023.90

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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.