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Finding the Fourth Proportional to 230,995.81, 318,779.45 and 135,571.33

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Solution

The fourth proportional to 230,995.81, 318,779.45 and 135,571.33 is: 187,091.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,995.81 : 318,779.45 = 135,571.33 : x
  2. Step 2: Convert to fraction form
    230,995.81/318,779.45 = 135,571.33/x
  3. Step 3: Cross multiply
    230,995.81x = 318,779.45 × 135,571.33
  4. Step 4: Simplify right side
    230,995.81x = 43,217,354,013.17
  5. Step 5: Solve for x
    x = 43,217,354,013.17/230,995.81
  6. Step 6: Final answer
    x = 187,091.51

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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.