Home / 210,442.20-290,338.20-119,775.47

Finding the Fourth Proportional to 210,442.20, 290,338.20 and 119,775.47

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Solution

The fourth proportional to 210,442.20, 290,338.20 and 119,775.47 is: 165,249.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,442.20 : 290,338.20 = 119,775.47 : x
  2. Step 2: Convert to fraction form
    210,442.20/290,338.20 = 119,775.47/x
  3. Step 3: Cross multiply
    210,442.20x = 290,338.20 × 119,775.47
  4. Step 4: Simplify right side
    210,442.20x = 34,775,392,912.26
  5. Step 5: Solve for x
    x = 34,775,392,912.26/210,442.20
  6. Step 6: Final answer
    x = 165,249.14

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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.