Home / 325,120.10-487,615.35-156,640.10

Finding the Fourth Proportional to 325,120.10, 487,615.35 and 156,640.10

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Solution

The fourth proportional to 325,120.10, 487,615.35 and 156,640.10 is: 234,928.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,120.10 : 487,615.35 = 156,640.10 : x
  2. Step 2: Convert to fraction form
    325,120.10/487,615.35 = 156,640.10/x
  3. Step 3: Cross multiply
    325,120.10x = 487,615.35 × 156,640.10
  4. Step 4: Simplify right side
    325,120.10x = 76,380,117,185.54
  5. Step 5: Solve for x
    x = 76,380,117,185.54/325,120.10
  6. Step 6: Final answer
    x = 234,928.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.