Home / 219,017.60-302,243.73-122,220.43

Finding the Fourth Proportional to 219,017.60, 302,243.73 and 122,220.43

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Solution

The fourth proportional to 219,017.60, 302,243.73 and 122,220.43 is: 168,663.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,017.60 : 302,243.73 = 122,220.43 : x
  2. Step 2: Convert to fraction form
    219,017.60/302,243.73 = 122,220.43/x
  3. Step 3: Cross multiply
    219,017.60x = 302,243.73 × 122,220.43
  4. Step 4: Simplify right side
    219,017.60x = 36,940,358,645.40
  5. Step 5: Solve for x
    x = 36,940,358,645.40/219,017.60
  6. Step 6: Final answer
    x = 168,663.88

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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.