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Finding the Fourth Proportional to 454,460.40, 681,690.60 and 134,623.80

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Solution

The fourth proportional to 454,460.40, 681,690.60 and 134,623.80 is: 201,935.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,460.40 : 681,690.60 = 134,623.80 : x
  2. Step 2: Convert to fraction form
    454,460.40/681,690.60 = 134,623.80/x
  3. Step 3: Cross multiply
    454,460.40x = 681,690.60 × 134,623.80
  4. Step 4: Simplify right side
    454,460.40x = 91,771,778,996.28
  5. Step 5: Solve for x
    x = 91,771,778,996.28/454,460.40
  6. Step 6: Final answer
    x = 201,935.70

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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.