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Finding the Fourth Proportional to 450,087.98, 621,180.16 and 259,109.42

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Solution

The fourth proportional to 450,087.98, 621,180.16 and 259,109.42 is: 357,604.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,087.98 : 621,180.16 = 259,109.42 : x
  2. Step 2: Convert to fraction form
    450,087.98/621,180.16 = 259,109.42/x
  3. Step 3: Cross multiply
    450,087.98x = 621,180.16 × 259,109.42
  4. Step 4: Simplify right side
    450,087.98x = 160,953,627,219.43
  5. Step 5: Solve for x
    x = 160,953,627,219.43/450,087.98
  6. Step 6: Final answer
    x = 357,604.82

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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.