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Finding the Fourth Proportional to 218,949.88, 302,150.77 and 118,347.88

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Solution

The fourth proportional to 218,949.88, 302,150.77 and 118,347.88 is: 163,320.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,949.88 : 302,150.77 = 118,347.88 : x
  2. Step 2: Convert to fraction form
    218,949.88/302,150.77 = 118,347.88/x
  3. Step 3: Cross multiply
    218,949.88x = 302,150.77 × 118,347.88
  4. Step 4: Simplify right side
    218,949.88x = 35,758,903,069.87
  5. Step 5: Solve for x
    x = 35,758,903,069.87/218,949.88
  6. Step 6: Final answer
    x = 163,320.04

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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.