Home / 312,656.22-431,299.14-190,186.04

Finding the Fourth Proportional to 312,656.22, 431,299.14 and 190,186.04

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Solution

The fourth proportional to 312,656.22, 431,299.14 and 190,186.04 is: 262,355.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,656.22 : 431,299.14 = 190,186.04 : x
  2. Step 2: Convert to fraction form
    312,656.22/431,299.14 = 190,186.04/x
  3. Step 3: Cross multiply
    312,656.22x = 431,299.14 × 190,186.04
  4. Step 4: Simplify right side
    312,656.22x = 82,027,075,492.01
  5. Step 5: Solve for x
    x = 82,027,075,492.01/312,656.22
  6. Step 6: Final answer
    x = 262,355.49

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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.