Home / 219,899.85-303,494.36-139,334.87

Finding the Fourth Proportional to 219,899.85, 303,494.36 and 139,334.87

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Solution

The fourth proportional to 219,899.85, 303,494.36 and 139,334.87 is: 192,302.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,899.85 : 303,494.36 = 139,334.87 : x
  2. Step 2: Convert to fraction form
    219,899.85/303,494.36 = 139,334.87/x
  3. Step 3: Cross multiply
    219,899.85x = 303,494.36 × 139,334.87
  4. Step 4: Simplify right side
    219,899.85x = 42,287,344,982.19
  5. Step 5: Solve for x
    x = 42,287,344,982.19/219,899.85
  6. Step 6: Final answer
    x = 192,302.75

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1.5x scale

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.