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Finding the Fourth Proportional to 219,456.78, 302,851.62 and 118,854.78

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Solution

The fourth proportional to 219,456.78, 302,851.62 and 118,854.78 is: 164,020.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,456.78 : 302,851.62 = 118,854.78 : x
  2. Step 2: Convert to fraction form
    219,456.78/302,851.62 = 118,854.78/x
  3. Step 3: Cross multiply
    219,456.78x = 302,851.62 × 118,854.78
  4. Step 4: Simplify right side
    219,456.78x = 35,995,362,667.74
  5. Step 5: Solve for x
    x = 35,995,362,667.74/219,456.78
  6. Step 6: Final answer
    x = 164,020.28

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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.