Home / 445,042.20-668,081.70-267,749.40

Finding the Fourth Proportional to 445,042.20, 668,081.70 and 267,749.40

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Solution

The fourth proportional to 445,042.20, 668,081.70 and 267,749.40 is: 401,935.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,042.20 : 668,081.70 = 267,749.40 : x
  2. Step 2: Convert to fraction form
    445,042.20/668,081.70 = 267,749.40/x
  3. Step 3: Cross multiply
    445,042.20x = 668,081.70 × 267,749.40
  4. Step 4: Simplify right side
    445,042.20x = 178,878,474,325.98
  5. Step 5: Solve for x
    x = 178,878,474,325.98/445,042.20
  6. Step 6: Final answer
    x = 401,935.98

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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.