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Finding the Fourth Proportional to 170,746.40, 256,119.60 and 100,704.80

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Solution

The fourth proportional to 170,746.40, 256,119.60 and 100,704.80 is: 151,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,746.40 : 256,119.60 = 100,704.80 : x
  2. Step 2: Convert to fraction form
    170,746.40/256,119.60 = 100,704.80/x
  3. Step 3: Cross multiply
    170,746.40x = 256,119.60 × 100,704.80
  4. Step 4: Simplify right side
    170,746.40x = 25,792,473,094.08
  5. Step 5: Solve for x
    x = 25,792,473,094.08/170,746.40
  6. Step 6: Final answer
    x = 151,057.20

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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.