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Finding the Fourth Proportional to 349,659.21, 525,488.37 and 325,965.90

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Solution

The fourth proportional to 349,659.21, 525,488.37 and 325,965.90 is: 489,880.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,659.21 : 525,488.37 = 325,965.90 : x
  2. Step 2: Convert to fraction form
    349,659.21/525,488.37 = 325,965.90/x
  3. Step 3: Cross multiply
    349,659.21x = 525,488.37 × 325,965.90
  4. Step 4: Simplify right side
    349,659.21x = 171,291,289,466.58
  5. Step 5: Solve for x
    x = 171,291,289,466.58/349,659.21
  6. Step 6: Final answer
    x = 489,880.67

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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.