Home / 219,180.86-302,466.60-122,386.21

Finding the Fourth Proportional to 219,180.86, 302,466.60 and 122,386.21

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Solution

The fourth proportional to 219,180.86, 302,466.60 and 122,386.21 is: 168,891.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,180.86 : 302,466.60 = 122,386.21 : x
  2. Step 2: Convert to fraction form
    219,180.86/302,466.60 = 122,386.21/x
  3. Step 3: Cross multiply
    219,180.86x = 302,466.60 × 122,386.21
  4. Step 4: Simplify right side
    219,180.86x = 37,017,739,313.25
  5. Step 5: Solve for x
    x = 37,017,739,313.25/219,180.86
  6. Step 6: Final answer
    x = 168,891.30

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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.