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Finding the Fourth Proportional to 450,074.56, 621,164.64 and 271,192

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Solution

The fourth proportional to 450,074.56, 621,164.64 and 271,192 is: 374,282.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,074.56 : 621,164.64 = 271,192 : x
  2. Step 2: Convert to fraction form
    450,074.56/621,164.64 = 271,192/x
  3. Step 3: Cross multiply
    450,074.56x = 621,164.64 × 271,192
  4. Step 4: Simplify right side
    450,074.56x = 168,454,881,050.88
  5. Step 5: Solve for x
    x = 168,454,881,050.88/450,074.56
  6. Step 6: Final answer
    x = 374,282.17

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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.