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Finding the Fourth Proportional to 401,745.98, 554,407.93 and 220,460.94

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Solution

The fourth proportional to 401,745.98, 554,407.93 and 220,460.94 is: 304,235.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,745.98 : 554,407.93 = 220,460.94 : x
  2. Step 2: Convert to fraction form
    401,745.98/554,407.93 = 220,460.94/x
  3. Step 3: Cross multiply
    401,745.98x = 554,407.93 × 220,460.94
  4. Step 4: Simplify right side
    401,745.98x = 122,225,293,391.25
  5. Step 5: Solve for x
    x = 122,225,293,391.25/401,745.98
  6. Step 6: Final answer
    x = 304,235.26

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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.