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Finding the Fourth Proportional to 170,738.80, 256,108.20 and 52,410.40

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Solution

The fourth proportional to 170,738.80, 256,108.20 and 52,410.40 is: 78,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,738.80 : 256,108.20 = 52,410.40 : x
  2. Step 2: Convert to fraction form
    170,738.80/256,108.20 = 52,410.40/x
  3. Step 3: Cross multiply
    170,738.80x = 256,108.20 × 52,410.40
  4. Step 4: Simplify right side
    170,738.80x = 13,422,733,205.28
  5. Step 5: Solve for x
    x = 13,422,733,205.28/170,738.80
  6. Step 6: Final answer
    x = 78,615.60

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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.