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Finding the Fourth Proportional to 219,590, 303,034.56 and 118,988

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Solution

The fourth proportional to 219,590, 303,034.56 and 118,988 is: 164,203.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,590 : 303,034.56 = 118,988 : x
  2. Step 2: Convert to fraction form
    219,590/303,034.56 = 118,988/x
  3. Step 3: Cross multiply
    219,590x = 303,034.56 × 118,988
  4. Step 4: Simplify right side
    219,590x = 36,057,476,225.28
  5. Step 5: Solve for x
    x = 36,057,476,225.28/219,590
  6. Step 6: Final answer
    x = 164,203.64

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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.