Home / 401,985.87-602,992.35-202,197.33

Finding the Fourth Proportional to 401,985.87, 602,992.35 and 202,197.33

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Solution

The fourth proportional to 401,985.87, 602,992.35 and 202,197.33 is: 303,302.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,985.87 : 602,992.35 = 202,197.33 : x
  2. Step 2: Convert to fraction form
    401,985.87/602,992.35 = 202,197.33/x
  3. Step 3: Cross multiply
    401,985.87x = 602,992.35 × 202,197.33
  4. Step 4: Simplify right side
    401,985.87x = 121,923,443,180.43
  5. Step 5: Solve for x
    x = 121,923,443,180.43/401,985.87
  6. Step 6: Final answer
    x = 303,302.81

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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.