Home / 401,428.22-602,142.33-135,166.44

Finding the Fourth Proportional to 401,428.22, 602,142.33 and 135,166.44

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Solution

The fourth proportional to 401,428.22, 602,142.33 and 135,166.44 is: 202,749.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,428.22 : 602,142.33 = 135,166.44 : x
  2. Step 2: Convert to fraction form
    401,428.22/602,142.33 = 135,166.44/x
  3. Step 3: Cross multiply
    401,428.22x = 602,142.33 × 135,166.44
  4. Step 4: Simplify right side
    401,428.22x = 81,389,435,119.41
  5. Step 5: Solve for x
    x = 81,389,435,119.41/401,428.22
  6. Step 6: Final answer
    x = 202,749.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.