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Finding the Fourth Proportional to 454,657.50, 681,616.40 and 170,188.72

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Solution

The fourth proportional to 454,657.50, 681,616.40 and 170,188.72 is: 255,144.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,657.50 : 681,616.40 = 170,188.72 : x
  2. Step 2: Convert to fraction form
    454,657.50/681,616.40 = 170,188.72/x
  3. Step 3: Cross multiply
    454,657.50x = 681,616.40 × 170,188.72
  4. Step 4: Simplify right side
    454,657.50x = 116,003,422,220.46
  5. Step 5: Solve for x
    x = 116,003,422,220.46/454,657.50
  6. Step 6: Final answer
    x = 255,144.63

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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.