Home / 279,779.81-419,582.23-121,849.25

Finding the Fourth Proportional to 279,779.81, 419,582.23 and 121,849.25

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Solution

The fourth proportional to 279,779.81, 419,582.23 and 121,849.25 is: 182,735.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,779.81 : 419,582.23 = 121,849.25 : x
  2. Step 2: Convert to fraction form
    279,779.81/419,582.23 = 121,849.25/x
  3. Step 3: Cross multiply
    279,779.81x = 419,582.23 × 121,849.25
  4. Step 4: Simplify right side
    279,779.81x = 51,125,777,636.29
  5. Step 5: Solve for x
    x = 51,125,777,636.29/279,779.81
  6. Step 6: Final answer
    x = 182,735.77

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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.