Home / 421,619.92-581,823.08-230,629.20

Finding the Fourth Proportional to 421,619.92, 581,823.08 and 230,629.20

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Solution

The fourth proportional to 421,619.92, 581,823.08 and 230,629.20 is: 318,261.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,619.92 : 581,823.08 = 230,629.20 : x
  2. Step 2: Convert to fraction form
    421,619.92/581,823.08 = 230,629.20/x
  3. Step 3: Cross multiply
    421,619.92x = 581,823.08 × 230,629.20
  4. Step 4: Simplify right side
    421,619.92x = 134,185,391,481.94
  5. Step 5: Solve for x
    x = 134,185,391,481.94/421,619.92
  6. Step 6: Final answer
    x = 318,261.51

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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.