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Finding the Fourth Proportional to 243,040.45, 364,068.60 and 137,736.40

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Solution

The fourth proportional to 243,040.45, 364,068.60 and 137,736.40 is: 206,325.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,040.45 : 364,068.60 = 137,736.40 : x
  2. Step 2: Convert to fraction form
    243,040.45/364,068.60 = 137,736.40/x
  3. Step 3: Cross multiply
    243,040.45x = 364,068.60 × 137,736.40
  4. Step 4: Simplify right side
    243,040.45x = 50,145,498,317.04
  5. Step 5: Solve for x
    x = 50,145,498,317.04/243,040.45
  6. Step 6: Final answer
    x = 206,325.73

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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.