Home / 401,027.32-553,380.90-231,228.64

Finding the Fourth Proportional to 401,027.32, 553,380.90 and 231,228.64

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Solution

The fourth proportional to 401,027.32, 553,380.90 and 231,228.64 is: 319,074.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,027.32 : 553,380.90 = 231,228.64 : x
  2. Step 2: Convert to fraction form
    401,027.32/553,380.90 = 231,228.64/x
  3. Step 3: Cross multiply
    401,027.32x = 553,380.90 × 231,228.64
  4. Step 4: Simplify right side
    401,027.32x = 127,957,512,908.98
  5. Step 5: Solve for x
    x = 127,957,512,908.98/401,027.32
  6. Step 6: Final answer
    x = 319,074.30

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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.