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Finding the Fourth Proportional to 243,004.25, 335,355.59 and 135,583.67

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Solution

The fourth proportional to 243,004.25, 335,355.59 and 135,583.67 is: 187,110.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,004.25 : 335,355.59 = 135,583.67 : x
  2. Step 2: Convert to fraction form
    243,004.25/335,355.59 = 135,583.67/x
  3. Step 3: Cross multiply
    243,004.25x = 335,355.59 × 135,583.67
  4. Step 4: Simplify right side
    243,004.25x = 45,468,740,969.30
  5. Step 5: Solve for x
    x = 45,468,740,969.30/243,004.25
  6. Step 6: Final answer
    x = 187,110.89

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1.5x scale

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.