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Finding the Fourth Proportional to 418,409.01, 627,245.58 and 165,866.89

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Solution

The fourth proportional to 418,409.01, 627,245.58 and 165,866.89 is: 248,654.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,409.01 : 627,245.58 = 165,866.89 : x
  2. Step 2: Convert to fraction form
    418,409.01/627,245.58 = 165,866.89/x
  3. Step 3: Cross multiply
    418,409.01x = 627,245.58 × 165,866.89
  4. Step 4: Simplify right side
    418,409.01x = 104,039,273,620.85
  5. Step 5: Solve for x
    x = 104,039,273,620.85/418,409.01
  6. Step 6: Final answer
    x = 248,654.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.