Home / 219,431.90-302,936.54-137,845.25

Finding the Fourth Proportional to 219,431.90, 302,936.54 and 137,845.25

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Solution

The fourth proportional to 219,431.90, 302,936.54 and 137,845.25 is: 190,302.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,431.90 : 302,936.54 = 137,845.25 : x
  2. Step 2: Convert to fraction form
    219,431.90/302,936.54 = 137,845.25/x
  3. Step 3: Cross multiply
    219,431.90x = 302,936.54 × 137,845.25
  4. Step 4: Simplify right side
    219,431.90x = 41,758,363,090.44
  5. Step 5: Solve for x
    x = 41,758,363,090.44/219,431.90
  6. Step 6: Final answer
    x = 190,302.15

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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.