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Finding the Fourth Proportional to 199,436.80, 299,330.16 and 110,790.40

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Solution

The fourth proportional to 199,436.80, 299,330.16 and 110,790.40 is: 166,282.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,436.80 : 299,330.16 = 110,790.40 : x
  2. Step 2: Convert to fraction form
    199,436.80/299,330.16 = 110,790.40/x
  3. Step 3: Cross multiply
    199,436.80x = 299,330.16 × 110,790.40
  4. Step 4: Simplify right side
    199,436.80x = 33,162,908,158.46
  5. Step 5: Solve for x
    x = 33,162,908,158.46/199,436.80
  6. Step 6: Final answer
    x = 166,282.79

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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.