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Finding the Fourth Proportional to 170,828.40, 256,242.60 and 108,620.40

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Solution

The fourth proportional to 170,828.40, 256,242.60 and 108,620.40 is: 162,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,828.40 : 256,242.60 = 108,620.40 : x
  2. Step 2: Convert to fraction form
    170,828.40/256,242.60 = 108,620.40/x
  3. Step 3: Cross multiply
    170,828.40x = 256,242.60 × 108,620.40
  4. Step 4: Simplify right side
    170,828.40x = 27,833,173,709.04
  5. Step 5: Solve for x
    x = 27,833,173,709.04/170,828.40
  6. Step 6: Final answer
    x = 162,930.60

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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.