Home / 218,121.28-301,004.16-121,324.12

Finding the Fourth Proportional to 218,121.28, 301,004.16 and 121,324.12

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Solution

The fourth proportional to 218,121.28, 301,004.16 and 121,324.12 is: 167,425.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,121.28 : 301,004.16 = 121,324.12 : x
  2. Step 2: Convert to fraction form
    218,121.28/301,004.16 = 121,324.12/x
  3. Step 3: Cross multiply
    218,121.28x = 301,004.16 × 121,324.12
  4. Step 4: Simplify right side
    218,121.28x = 36,519,064,828.34
  5. Step 5: Solve for x
    x = 36,519,064,828.34/218,121.28
  6. Step 6: Final answer
    x = 167,425.50

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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.