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Finding the Fourth Proportional to 218,994, 302,212.44 and 118,392.72

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Solution

The fourth proportional to 218,994, 302,212.44 and 118,392.72 is: 163,382.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,994 : 302,212.44 = 118,392.72 : x
  2. Step 2: Convert to fraction form
    218,994/302,212.44 = 118,392.72/x
  3. Step 3: Cross multiply
    218,994x = 302,212.44 × 118,392.72
  4. Step 4: Simplify right side
    218,994x = 35,779,752,789.44
  5. Step 5: Solve for x
    x = 35,779,752,789.44/218,994
  6. Step 6: Final answer
    x = 163,382.34

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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.