Home / 254,480.12-351,186.69-138,193.57

Finding the Fourth Proportional to 254,480.12, 351,186.69 and 138,193.57

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Solution

The fourth proportional to 254,480.12, 351,186.69 and 138,193.57 is: 190,709.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,480.12 : 351,186.69 = 138,193.57 : x
  2. Step 2: Convert to fraction form
    254,480.12/351,186.69 = 138,193.57/x
  3. Step 3: Cross multiply
    254,480.12x = 351,186.69 × 138,193.57
  4. Step 4: Simplify right side
    254,480.12x = 48,531,742,494.25
  5. Step 5: Solve for x
    x = 48,531,742,494.25/254,480.12
  6. Step 6: Final answer
    x = 190,709.37

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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.