Home / 403,890.90-557,362.19-220,131.12

Finding the Fourth Proportional to 403,890.90, 557,362.19 and 220,131.12

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Solution

The fourth proportional to 403,890.90, 557,362.19 and 220,131.12 is: 303,776.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,890.90 : 557,362.19 = 220,131.12 : x
  2. Step 2: Convert to fraction form
    403,890.90/557,362.19 = 220,131.12/x
  3. Step 3: Cross multiply
    403,890.90x = 557,362.19 × 220,131.12
  4. Step 4: Simplify right side
    403,890.90x = 122,692,763,130.35
  5. Step 5: Solve for x
    x = 122,692,763,130.35/403,890.90
  6. Step 6: Final answer
    x = 303,776.99

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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.