Home / 217,004.40-325,312.20-142,160.40

Finding the Fourth Proportional to 217,004.40, 325,312.20 and 142,160.40

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Solution

The fourth proportional to 217,004.40, 325,312.20 and 142,160.40 is: 213,113.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,004.40 : 325,312.20 = 142,160.40 : x
  2. Step 2: Convert to fraction form
    217,004.40/325,312.20 = 142,160.40/x
  3. Step 3: Cross multiply
    217,004.40x = 325,312.20 × 142,160.40
  4. Step 4: Simplify right side
    217,004.40x = 46,246,512,476.88
  5. Step 5: Solve for x
    x = 46,246,512,476.88/217,004.40
  6. Step 6: Final answer
    x = 213,113.25

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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.