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Finding the Fourth Proportional to 281,767.62, 388,838.32 and 152,709.23

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Solution

The fourth proportional to 281,767.62, 388,838.32 and 152,709.23 is: 210,738.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,767.62 : 388,838.32 = 152,709.23 : x
  2. Step 2: Convert to fraction form
    281,767.62/388,838.32 = 152,709.23/x
  3. Step 3: Cross multiply
    281,767.62x = 388,838.32 × 152,709.23
  4. Step 4: Simplify right side
    281,767.62x = 59,379,198,497.50
  5. Step 5: Solve for x
    x = 59,379,198,497.50/281,767.62
  6. Step 6: Final answer
    x = 210,738.19

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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.