Home / 491,319.21-736,970.57-221,297.16

Finding the Fourth Proportional to 491,319.21, 736,970.57 and 221,297.16

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Solution

The fourth proportional to 491,319.21, 736,970.57 and 221,297.16 is: 331,942.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,319.21 : 736,970.57 = 221,297.16 : x
  2. Step 2: Convert to fraction form
    491,319.21/736,970.57 = 221,297.16/x
  3. Step 3: Cross multiply
    491,319.21x = 736,970.57 × 221,297.16
  4. Step 4: Simplify right side
    491,319.21x = 163,089,494,144.58
  5. Step 5: Solve for x
    x = 163,089,494,144.58/491,319.21
  6. Step 6: Final answer
    x = 331,942.03

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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.