Home / 218,790.24-301,930.50-123,300.36

Finding the Fourth Proportional to 218,790.24, 301,930.50 and 123,300.36

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Solution

The fourth proportional to 218,790.24, 301,930.50 and 123,300.36 is: 170,154.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,790.24 : 301,930.50 = 123,300.36 : x
  2. Step 2: Convert to fraction form
    218,790.24/301,930.50 = 123,300.36/x
  3. Step 3: Cross multiply
    218,790.24x = 301,930.50 × 123,300.36
  4. Step 4: Simplify right side
    218,790.24x = 37,228,139,344.98
  5. Step 5: Solve for x
    x = 37,228,139,344.98/218,790.24
  6. Step 6: Final answer
    x = 170,154.48

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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.