Home / 401,467.44-553,867-231,668.76

Finding the Fourth Proportional to 401,467.44, 553,867 and 231,668.76

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Solution

The fourth proportional to 401,467.44, 553,867 and 231,668.76 is: 319,611.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,467.44 : 553,867 = 231,668.76 : x
  2. Step 2: Convert to fraction form
    401,467.44/553,867 = 231,668.76/x
  3. Step 3: Cross multiply
    401,467.44x = 553,867 × 231,668.76
  4. Step 4: Simplify right side
    401,467.44x = 128,313,681,094.92
  5. Step 5: Solve for x
    x = 128,313,681,094.92/401,467.44
  6. Step 6: Final answer
    x = 319,611.68

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1.5x scale

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.