Home / 380,949.30-571,503.87-144,286.74

Finding the Fourth Proportional to 380,949.30, 571,503.87 and 144,286.74

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Solution

The fourth proportional to 380,949.30, 571,503.87 and 144,286.74 is: 216,460.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,949.30 : 571,503.87 = 144,286.74 : x
  2. Step 2: Convert to fraction form
    380,949.30/571,503.87 = 144,286.74/x
  3. Step 3: Cross multiply
    380,949.30x = 571,503.87 × 144,286.74
  4. Step 4: Simplify right side
    380,949.30x = 82,460,430,299.68
  5. Step 5: Solve for x
    x = 82,460,430,299.68/380,949.30
  6. Step 6: Final answer
    x = 216,460.38

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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.