Home / 218,508.91-301,571.03-123,034.21

Finding the Fourth Proportional to 218,508.91, 301,571.03 and 123,034.21

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Solution

The fourth proportional to 218,508.91, 301,571.03 and 123,034.21 is: 169,803.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,508.91 : 301,571.03 = 123,034.21 : x
  2. Step 2: Convert to fraction form
    218,508.91/301,571.03 = 123,034.21/x
  3. Step 3: Cross multiply
    218,508.91x = 301,571.03 × 123,034.21
  4. Step 4: Simplify right side
    218,508.91x = 37,103,552,988.59
  5. Step 5: Solve for x
    x = 37,103,552,988.59/218,508.91
  6. Step 6: Final answer
    x = 169,803.39

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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.