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Finding the Fourth Proportional to 349,846.80, 525,029.40 and 139,635.60

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Solution

The fourth proportional to 349,846.80, 525,029.40 and 139,635.60 is: 209,556.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,846.80 : 525,029.40 = 139,635.60 : x
  2. Step 2: Convert to fraction form
    349,846.80/525,029.40 = 139,635.60/x
  3. Step 3: Cross multiply
    349,846.80x = 525,029.40 × 139,635.60
  4. Step 4: Simplify right side
    349,846.80x = 73,312,795,286.64
  5. Step 5: Solve for x
    x = 73,312,795,286.64/349,846.80
  6. Step 6: Final answer
    x = 209,556.86

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1.5x scale

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.