Home / 216,128.32-298,257.20-120,634.96

Finding the Fourth Proportional to 216,128.32, 298,257.20 and 120,634.96

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Solution

The fourth proportional to 216,128.32, 298,257.20 and 120,634.96 is: 166,476.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,128.32 : 298,257.20 = 120,634.96 : x
  2. Step 2: Convert to fraction form
    216,128.32/298,257.20 = 120,634.96/x
  3. Step 3: Cross multiply
    216,128.32x = 298,257.20 × 120,634.96
  4. Step 4: Simplify right side
    216,128.32x = 35,980,245,391.71
  5. Step 5: Solve for x
    x = 35,980,245,391.71/216,128.32
  6. Step 6: Final answer
    x = 166,476.31

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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.