Home / 343,431.03-515,225.07-118,791.30

Finding the Fourth Proportional to 343,431.03, 515,225.07 and 118,791.30

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Solution

The fourth proportional to 343,431.03, 515,225.07 and 118,791.30 is: 178,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,431.03 : 515,225.07 = 118,791.30 : x
  2. Step 2: Convert to fraction form
    343,431.03/515,225.07 = 118,791.30/x
  3. Step 3: Cross multiply
    343,431.03x = 515,225.07 × 118,791.30
  4. Step 4: Simplify right side
    343,431.03x = 61,204,255,857.89
  5. Step 5: Solve for x
    x = 61,204,255,857.89/343,431.03
  6. Step 6: Final answer
    x = 178,214.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.