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Finding the Fourth Proportional to 243,173.04, 335,573.18 and 135,753

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Solution

The fourth proportional to 243,173.04, 335,573.18 and 135,753 is: 187,336.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,173.04 : 335,573.18 = 135,753 : x
  2. Step 2: Convert to fraction form
    243,173.04/335,573.18 = 135,753/x
  3. Step 3: Cross multiply
    243,173.04x = 335,573.18 × 135,753
  4. Step 4: Simplify right side
    243,173.04x = 45,555,065,904.54
  5. Step 5: Solve for x
    x = 45,555,065,904.54/243,173.04
  6. Step 6: Final answer
    x = 187,336.01

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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.