Home / 225,510.12-311,190.63-123,515.25

Finding the Fourth Proportional to 225,510.12, 311,190.63 and 123,515.25

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Solution

The fourth proportional to 225,510.12, 311,190.63 and 123,515.25 is: 170,443.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,510.12 : 311,190.63 = 123,515.25 : x
  2. Step 2: Convert to fraction form
    225,510.12/311,190.63 = 123,515.25/x
  3. Step 3: Cross multiply
    225,510.12x = 311,190.63 × 123,515.25
  4. Step 4: Simplify right side
    225,510.12x = 38,436,788,462.11
  5. Step 5: Solve for x
    x = 38,436,788,462.11/225,510.12
  6. Step 6: Final answer
    x = 170,443.74

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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.