Home / 349,788.80-524,942.40-139,577.60

Finding the Fourth Proportional to 349,788.80, 524,942.40 and 139,577.60

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Solution

The fourth proportional to 349,788.80, 524,942.40 and 139,577.60 is: 209,469.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,788.80 : 524,942.40 = 139,577.60 : x
  2. Step 2: Convert to fraction form
    349,788.80/524,942.40 = 139,577.60/x
  3. Step 3: Cross multiply
    349,788.80x = 524,942.40 × 139,577.60
  4. Step 4: Simplify right side
    349,788.80x = 73,270,200,330.24
  5. Step 5: Solve for x
    x = 73,270,200,330.24/349,788.80
  6. Step 6: Final answer
    x = 209,469.83

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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.