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Finding the Fourth Proportional to 281,133.60, 421,894.80 and 202,304.40

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Solution

The fourth proportional to 281,133.60, 421,894.80 and 202,304.40 is: 303,596.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,133.60 : 421,894.80 = 202,304.40 : x
  2. Step 2: Convert to fraction form
    281,133.60/421,894.80 = 202,304.40/x
  3. Step 3: Cross multiply
    281,133.60x = 421,894.80 × 202,304.40
  4. Step 4: Simplify right side
    281,133.60x = 85,351,174,377.12
  5. Step 5: Solve for x
    x = 85,351,174,377.12/281,133.60
  6. Step 6: Final answer
    x = 303,596.49

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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.