Home / 219,318.21-302,625-123,822.90

Finding the Fourth Proportional to 219,318.21, 302,625 and 123,822.90

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Solution

The fourth proportional to 219,318.21, 302,625 and 123,822.90 is: 170,856.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,318.21 : 302,625 = 123,822.90 : x
  2. Step 2: Convert to fraction form
    219,318.21/302,625 = 123,822.90/x
  3. Step 3: Cross multiply
    219,318.21x = 302,625 × 123,822.90
  4. Step 4: Simplify right side
    219,318.21x = 37,471,905,112.50
  5. Step 5: Solve for x
    x = 37,471,905,112.50/219,318.21
  6. Step 6: Final answer
    x = 170,856.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.