Home / 225,400.37-311,038.70-123,427.04

Finding the Fourth Proportional to 225,400.37, 311,038.70 and 123,427.04

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Solution

The fourth proportional to 225,400.37, 311,038.70 and 123,427.04 is: 170,321.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,400.37 : 311,038.70 = 123,427.04 : x
  2. Step 2: Convert to fraction form
    225,400.37/311,038.70 = 123,427.04/x
  3. Step 3: Cross multiply
    225,400.37x = 311,038.70 × 123,427.04
  4. Step 4: Simplify right side
    225,400.37x = 38,390,583,894.12
  5. Step 5: Solve for x
    x = 38,390,583,894.12/225,400.37
  6. Step 6: Final answer
    x = 170,321.75

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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.