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Finding the Fourth Proportional to 281,017.80, 421,526.70 and 162,992.70

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Solution

The fourth proportional to 281,017.80, 421,526.70 and 162,992.70 is: 244,489.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,017.80 : 421,526.70 = 162,992.70 : x
  2. Step 2: Convert to fraction form
    281,017.80/421,526.70 = 162,992.70/x
  3. Step 3: Cross multiply
    281,017.80x = 421,526.70 × 162,992.70
  4. Step 4: Simplify right side
    281,017.80x = 68,705,774,955.09
  5. Step 5: Solve for x
    x = 68,705,774,955.09/281,017.80
  6. Step 6: Final answer
    x = 244,489.05

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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.