Home / 342,293.66-472,208.09-221,474.33

Finding the Fourth Proportional to 342,293.66, 472,208.09 and 221,474.33

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Solution

The fourth proportional to 342,293.66, 472,208.09 and 221,474.33 is: 305,532.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,293.66 : 472,208.09 = 221,474.33 : x
  2. Step 2: Convert to fraction form
    342,293.66/472,208.09 = 221,474.33/x
  3. Step 3: Cross multiply
    342,293.66x = 472,208.09 × 221,474.33
  4. Step 4: Simplify right side
    342,293.66x = 104,581,966,884.92
  5. Step 5: Solve for x
    x = 104,581,966,884.92/342,293.66
  6. Step 6: Final answer
    x = 305,532.88

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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.