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Finding the Fourth Proportional to 281,690.29, 388,729.29 and 152,626.24

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Solution

The fourth proportional to 281,690.29, 388,729.29 and 152,626.24 is: 210,622.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,690.29 : 388,729.29 = 152,626.24 : x
  2. Step 2: Convert to fraction form
    281,690.29/388,729.29 = 152,626.24/x
  3. Step 3: Cross multiply
    281,690.29x = 388,729.29 × 152,626.24
  4. Step 4: Simplify right side
    281,690.29x = 59,330,289,910.57
  5. Step 5: Solve for x
    x = 59,330,289,910.57/281,690.29
  6. Step 6: Final answer
    x = 210,622.42

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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.