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Finding the Fourth Proportional to 200,779.33, 301,019.21 and 120,798.56

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Solution

The fourth proportional to 200,779.33, 301,019.21 and 120,798.56 is: 181,107.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,779.33 : 301,019.21 = 120,798.56 : x
  2. Step 2: Convert to fraction form
    200,779.33/301,019.21 = 120,798.56/x
  3. Step 3: Cross multiply
    200,779.33x = 301,019.21 × 120,798.56
  4. Step 4: Simplify right side
    200,779.33x = 36,362,686,496.34
  5. Step 5: Solve for x
    x = 36,362,686,496.34/200,779.33
  6. Step 6: Final answer
    x = 181,107.72

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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.