Home / 345,736.20-519,138.90-188,272.20

Finding the Fourth Proportional to 345,736.20, 519,138.90 and 188,272.20

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Solution

The fourth proportional to 345,736.20, 519,138.90 and 188,272.20 is: 282,699.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,736.20 : 519,138.90 = 188,272.20 : x
  2. Step 2: Convert to fraction form
    345,736.20/519,138.90 = 188,272.20/x
  3. Step 3: Cross multiply
    345,736.20x = 519,138.90 × 188,272.20
  4. Step 4: Simplify right side
    345,736.20x = 97,739,422,808.58
  5. Step 5: Solve for x
    x = 97,739,422,808.58/345,736.20
  6. Step 6: Final answer
    x = 282,699.42

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1.5x scale

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.