Home / 218,846.41-328,298.33-85,709.37

Finding the Fourth Proportional to 218,846.41, 328,298.33 and 85,709.37

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Solution

The fourth proportional to 218,846.41, 328,298.33 and 85,709.37 is: 128,575.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,846.41 : 328,298.33 = 85,709.37 : x
  2. Step 2: Convert to fraction form
    218,846.41/328,298.33 = 85,709.37/x
  3. Step 3: Cross multiply
    218,846.41x = 328,298.33 × 85,709.37
  4. Step 4: Simplify right side
    218,846.41x = 28,138,242,607.81
  5. Step 5: Solve for x
    x = 28,138,242,607.81/218,846.41
  6. Step 6: Final answer
    x = 128,575.30

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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.