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Finding the Fourth Proportional to 190,601, 262,857.18 and 118,987.64

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Solution

The fourth proportional to 190,601, 262,857.18 and 118,987.64 is: 164,095.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,601 : 262,857.18 = 118,987.64 : x
  2. Step 2: Convert to fraction form
    190,601/262,857.18 = 118,987.64/x
  3. Step 3: Cross multiply
    190,601x = 262,857.18 × 118,987.64
  4. Step 4: Simplify right side
    190,601x = 31,276,755,505.26
  5. Step 5: Solve for x
    x = 31,276,755,505.26/190,601
  6. Step 6: Final answer
    x = 164,095.44

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1.5x scale

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.