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Finding the Fourth Proportional to 242,791.95, 335,054.30 and 135,368.67

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Solution

The fourth proportional to 242,791.95, 335,054.30 and 135,368.67 is: 186,809.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,791.95 : 335,054.30 = 135,368.67 : x
  2. Step 2: Convert to fraction form
    242,791.95/335,054.30 = 135,368.67/x
  3. Step 3: Cross multiply
    242,791.95x = 335,054.30 × 135,368.67
  4. Step 4: Simplify right side
    242,791.95x = 45,355,854,291.94
  5. Step 5: Solve for x
    x = 45,355,854,291.94/242,791.95
  6. Step 6: Final answer
    x = 186,809.55

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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.