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Finding the Fourth Proportional to 218,936.93, 302,132.81 and 118,334.93

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Solution

The fourth proportional to 218,936.93, 302,132.81 and 118,334.93 is: 163,302.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,936.93 : 302,132.81 = 118,334.93 : x
  2. Step 2: Convert to fraction form
    218,936.93/302,132.81 = 118,334.93/x
  3. Step 3: Cross multiply
    218,936.93x = 302,132.81 × 118,334.93
  4. Step 4: Simplify right side
    218,936.93x = 35,752,864,922.05
  5. Step 5: Solve for x
    x = 35,752,864,922.05/218,936.93
  6. Step 6: Final answer
    x = 163,302.12

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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.