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Finding the Fourth Proportional to 325,493.71, 488,286.77 and 100,871.80

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Solution

The fourth proportional to 325,493.71, 488,286.77 and 100,871.80 is: 151,322.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,493.71 : 488,286.77 = 100,871.80 : x
  2. Step 2: Convert to fraction form
    325,493.71/488,286.77 = 100,871.80/x
  3. Step 3: Cross multiply
    325,493.71x = 488,286.77 × 100,871.80
  4. Step 4: Simplify right side
    325,493.71x = 49,254,363,681.01
  5. Step 5: Solve for x
    x = 49,254,363,681.01/325,493.71
  6. Step 6: Final answer
    x = 151,322.01

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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.