Home / 231,779.21-319,828.26-135,004.25

Finding the Fourth Proportional to 231,779.21, 319,828.26 and 135,004.25

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Solution

The fourth proportional to 231,779.21, 319,828.26 and 135,004.25 is: 186,290.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,779.21 : 319,828.26 = 135,004.25 : x
  2. Step 2: Convert to fraction form
    231,779.21/319,828.26 = 135,004.25/x
  3. Step 3: Cross multiply
    231,779.21x = 319,828.26 × 135,004.25
  4. Step 4: Simplify right side
    231,779.21x = 43,178,175,675.94
  5. Step 5: Solve for x
    x = 43,178,175,675.94/231,779.21
  6. Step 6: Final answer
    x = 186,290.12

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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.