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Finding the Fourth Proportional to 216,735.22, 299,119.41 and 121,266.10

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Solution

The fourth proportional to 216,735.22, 299,119.41 and 121,266.10 is: 167,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,735.22 : 299,119.41 = 121,266.10 : x
  2. Step 2: Convert to fraction form
    216,735.22/299,119.41 = 121,266.10/x
  3. Step 3: Cross multiply
    216,735.22x = 299,119.41 × 121,266.10
  4. Step 4: Simplify right side
    216,735.22x = 36,273,044,285.00
  5. Step 5: Solve for x
    x = 36,273,044,285.00/216,735.22
  6. Step 6: Final answer
    x = 167,361.10

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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.