Home / 318,316.10-439,128.96-190,770.26

Finding the Fourth Proportional to 318,316.10, 439,128.96 and 190,770.26

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Solution

The fourth proportional to 318,316.10, 439,128.96 and 190,770.26 is: 263,174.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,316.10 : 439,128.96 = 190,770.26 : x
  2. Step 2: Convert to fraction form
    318,316.10/439,128.96 = 190,770.26/x
  3. Step 3: Cross multiply
    318,316.10x = 439,128.96 × 190,770.26
  4. Step 4: Simplify right side
    318,316.10x = 83,772,745,872.73
  5. Step 5: Solve for x
    x = 83,772,745,872.73/318,316.10
  6. Step 6: Final answer
    x = 263,174.71

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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.