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Finding the Fourth Proportional to 243,359.11, 335,816.58 and 134,458.81

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Solution

The fourth proportional to 243,359.11, 335,816.58 and 134,458.81 is: 185,542.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,359.11 : 335,816.58 = 134,458.81 : x
  2. Step 2: Convert to fraction form
    243,359.11/335,816.58 = 134,458.81/x
  3. Step 3: Cross multiply
    243,359.11x = 335,816.58 × 134,458.81
  4. Step 4: Simplify right side
    243,359.11x = 45,153,498,334.23
  5. Step 5: Solve for x
    x = 45,153,498,334.23/243,359.11
  6. Step 6: Final answer
    x = 185,542.67

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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.