Home / 380,855.10-571,284.69-114,613.80

Finding the Fourth Proportional to 380,855.10, 571,284.69 and 114,613.80

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Solution

The fourth proportional to 380,855.10, 571,284.69 and 114,613.80 is: 171,921.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,855.10 : 571,284.69 = 114,613.80 : x
  2. Step 2: Convert to fraction form
    380,855.10/571,284.69 = 114,613.80/x
  3. Step 3: Cross multiply
    380,855.10x = 571,284.69 × 114,613.80
  4. Step 4: Simplify right side
    380,855.10x = 65,477,109,202.72
  5. Step 5: Solve for x
    x = 65,477,109,202.72/380,855.10
  6. Step 6: Final answer
    x = 171,921.31

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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.