Home / 282,408.20-422,921.10-134,491.40

Finding the Fourth Proportional to 282,408.20, 422,921.10 and 134,491.40

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Solution

The fourth proportional to 282,408.20, 422,921.10 and 134,491.40 is: 201,407.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,408.20 : 422,921.10 = 134,491.40 : x
  2. Step 2: Convert to fraction form
    282,408.20/422,921.10 = 134,491.40/x
  3. Step 3: Cross multiply
    282,408.20x = 422,921.10 × 134,491.40
  4. Step 4: Simplify right side
    282,408.20x = 56,879,250,828.54
  5. Step 5: Solve for x
    x = 56,879,250,828.54/282,408.20
  6. Step 6: Final answer
    x = 201,407.93

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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.