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Finding the Third Proportional to 70,485.90 and 154,984.40

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Solution

The third proportional to 70,485.90 and 154,984.40 is: 340,779.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,485.90 : 154,984.40 = 154,984.40 : x
  2. Step 2: Convert to fraction form
    70,485.90/154,984.40 = 154,984.40/x
  3. Step 3: Cross multiply
    70,485.90x = 154,984.40 × 154,984.40
  4. Step 4: Simplify right side
    70,485.90x = 24,020,165,272.56
  5. Step 5: Solve for x
    x = 24,020,165,272.56/70,485.90
  6. Step 6: Final answer
    x = 340,779.72

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.