Home / 312,431.21-468,331.25-123,024.50

Finding the Fourth Proportional to 312,431.21, 468,331.25 and 123,024.50

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Solution

The fourth proportional to 312,431.21, 468,331.25 and 123,024.50 is: 184,412.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,431.21 : 468,331.25 = 123,024.50 : x
  2. Step 2: Convert to fraction form
    312,431.21/468,331.25 = 123,024.50/x
  3. Step 3: Cross multiply
    312,431.21x = 468,331.25 × 123,024.50
  4. Step 4: Simplify right side
    312,431.21x = 57,616,214,908.85
  5. Step 5: Solve for x
    x = 57,616,214,908.85/312,431.21
  6. Step 6: Final answer
    x = 184,412.49

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1.5x scale

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.