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Finding the Fourth Proportional to 450,083.88, 621,272.16 and 259,173.36

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Solution

The fourth proportional to 450,083.88, 621,272.16 and 259,173.36 is: 357,749.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,083.88 : 621,272.16 = 259,173.36 : x
  2. Step 2: Convert to fraction form
    450,083.88/621,272.16 = 259,173.36/x
  3. Step 3: Cross multiply
    450,083.88x = 621,272.16 × 259,173.36
  4. Step 4: Simplify right side
    450,083.88x = 161,017,193,181.66
  5. Step 5: Solve for x
    x = 161,017,193,181.66/450,083.88
  6. Step 6: Final answer
    x = 357,749.30

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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.