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Finding the Fourth Proportional to 128,463.84, 192,647.88 and 44,200.44

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Solution

The fourth proportional to 128,463.84, 192,647.88 and 44,200.44 is: 66,284.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,463.84 : 192,647.88 = 44,200.44 : x
  2. Step 2: Convert to fraction form
    128,463.84/192,647.88 = 44,200.44/x
  3. Step 3: Cross multiply
    128,463.84x = 192,647.88 × 44,200.44
  4. Step 4: Simplify right side
    128,463.84x = 8,515,121,061.07
  5. Step 5: Solve for x
    x = 8,515,121,061.07/128,463.84
  6. Step 6: Final answer
    x = 66,284.19

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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.