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Finding the Fourth Proportional to 192,803.28, 266,065.92 and 107,920.32

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Solution

The fourth proportional to 192,803.28, 266,065.92 and 107,920.32 is: 148,928.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,803.28 : 266,065.92 = 107,920.32 : x
  2. Step 2: Convert to fraction form
    192,803.28/266,065.92 = 107,920.32/x
  3. Step 3: Cross multiply
    192,803.28x = 266,065.92 × 107,920.32
  4. Step 4: Simplify right side
    192,803.28x = 28,713,919,227.49
  5. Step 5: Solve for x
    x = 28,713,919,227.49/192,803.28
  6. Step 6: Final answer
    x = 148,928.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.