Home / 291,135.42-401,774.73-163,815.54

Finding the Fourth Proportional to 291,135.42, 401,774.73 and 163,815.54

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Solution

The fourth proportional to 291,135.42, 401,774.73 and 163,815.54 is: 226,069.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,135.42 : 401,774.73 = 163,815.54 : x
  2. Step 2: Convert to fraction form
    291,135.42/401,774.73 = 163,815.54/x
  3. Step 3: Cross multiply
    291,135.42x = 401,774.73 × 163,815.54
  4. Step 4: Simplify right side
    291,135.42x = 65,816,944,353.30
  5. Step 5: Solve for x
    x = 65,816,944,353.30/291,135.42
  6. Step 6: Final answer
    x = 226,069.86

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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.