Home / 316,455.90-436,692.24-173,188.26

Finding the Fourth Proportional to 316,455.90, 436,692.24 and 173,188.26

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Solution

The fourth proportional to 316,455.90, 436,692.24 and 173,188.26 is: 238,990.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,455.90 : 436,692.24 = 173,188.26 : x
  2. Step 2: Convert to fraction form
    316,455.90/436,692.24 = 173,188.26/x
  3. Step 3: Cross multiply
    316,455.90x = 436,692.24 × 173,188.26
  4. Step 4: Simplify right side
    316,455.90x = 75,629,969,201.10
  5. Step 5: Solve for x
    x = 75,629,969,201.10/316,455.90
  6. Step 6: Final answer
    x = 238,990.55

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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.