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Finding the Fourth Proportional to 283,328.85, 425,039.40 and 83,669.43

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Solution

The fourth proportional to 283,328.85, 425,039.40 and 83,669.43 is: 125,517.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,328.85 : 425,039.40 = 83,669.43 : x
  2. Step 2: Convert to fraction form
    283,328.85/425,039.40 = 83,669.43/x
  3. Step 3: Cross multiply
    283,328.85x = 425,039.40 × 83,669.43
  4. Step 4: Simplify right side
    283,328.85x = 35,562,804,325.54
  5. Step 5: Solve for x
    x = 35,562,804,325.54/283,328.85
  6. Step 6: Final answer
    x = 125,517.77

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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.