Home / 211,224.38-291,489.71-126,361.49

Finding the Fourth Proportional to 211,224.38, 291,489.71 and 126,361.49

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Solution

The fourth proportional to 211,224.38, 291,489.71 and 126,361.49 is: 174,378.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,224.38 : 291,489.71 = 126,361.49 : x
  2. Step 2: Convert to fraction form
    211,224.38/291,489.71 = 126,361.49/x
  3. Step 3: Cross multiply
    211,224.38x = 291,489.71 × 126,361.49
  4. Step 4: Simplify right side
    211,224.38x = 36,833,071,986.01
  5. Step 5: Solve for x
    x = 36,833,071,986.01/211,224.38
  6. Step 6: Final answer
    x = 174,378.89

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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.