Home / 230,121.20-317,561.36-223,330.56

Finding the Fourth Proportional to 230,121.20, 317,561.36 and 223,330.56

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Solution

The fourth proportional to 230,121.20, 317,561.36 and 223,330.56 is: 308,190.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,121.20 : 317,561.36 = 223,330.56 : x
  2. Step 2: Convert to fraction form
    230,121.20/317,561.36 = 223,330.56/x
  3. Step 3: Cross multiply
    230,121.20x = 317,561.36 × 223,330.56
  4. Step 4: Simplify right side
    230,121.20x = 70,921,155,246.51
  5. Step 5: Solve for x
    x = 70,921,155,246.51/230,121.20
  6. Step 6: Final answer
    x = 308,190.45

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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.