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Finding the Fourth Proportional to 219,788, 303,307.44 and 119,186.08

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Solution

The fourth proportional to 219,788, 303,307.44 and 119,186.08 is: 164,476.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,788 : 303,307.44 = 119,186.08 : x
  2. Step 2: Convert to fraction form
    219,788/303,307.44 = 119,186.08/x
  3. Step 3: Cross multiply
    219,788x = 303,307.44 × 119,186.08
  4. Step 4: Simplify right side
    219,788x = 36,150,024,808.44
  5. Step 5: Solve for x
    x = 36,150,024,808.44/219,788
  6. Step 6: Final answer
    x = 164,476.79

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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.