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Finding the Fourth Proportional to 255,572.28, 383,331.72 and 113,419.98

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Solution

The fourth proportional to 255,572.28, 383,331.72 and 113,419.98 is: 170,118.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,572.28 : 383,331.72 = 113,419.98 : x
  2. Step 2: Convert to fraction form
    255,572.28/383,331.72 = 113,419.98/x
  3. Step 3: Cross multiply
    255,572.28x = 383,331.72 × 113,419.98
  4. Step 4: Simplify right side
    255,572.28x = 43,477,476,015.77
  5. Step 5: Solve for x
    x = 43,477,476,015.77/255,572.28
  6. Step 6: Final answer
    x = 170,118.12

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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.