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Finding the Fourth Proportional to 219,418.76, 302,796.16 and 118,816.76

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Solution

The fourth proportional to 219,418.76, 302,796.16 and 118,816.76 is: 163,966.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,418.76 : 302,796.16 = 118,816.76 : x
  2. Step 2: Convert to fraction form
    219,418.76/302,796.16 = 118,816.76/x
  3. Step 3: Cross multiply
    219,418.76x = 302,796.16 × 118,816.76
  4. Step 4: Simplify right side
    219,418.76x = 35,977,259,131.59
  5. Step 5: Solve for x
    x = 35,977,259,131.59/219,418.76
  6. Step 6: Final answer
    x = 163,966.19

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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.