Home / 290,909.56-401,452.68-163,582.42

Finding the Fourth Proportional to 290,909.56, 401,452.68 and 163,582.42

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Solution

The fourth proportional to 290,909.56, 401,452.68 and 163,582.42 is: 225,742.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,909.56 : 401,452.68 = 163,582.42 : x
  2. Step 2: Convert to fraction form
    290,909.56/401,452.68 = 163,582.42/x
  3. Step 3: Cross multiply
    290,909.56x = 401,452.68 × 163,582.42
  4. Step 4: Simplify right side
    290,909.56x = 65,670,600,909.89
  5. Step 5: Solve for x
    x = 65,670,600,909.89/290,909.56
  6. Step 6: Final answer
    x = 225,742.33

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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.