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Finding the Fourth Proportional to 645,283.70, 967,053.65 and 245,706.50

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Solution

The fourth proportional to 645,283.70, 967,053.65 and 245,706.50 is: 368,227.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,283.70 : 967,053.65 = 245,706.50 : x
  2. Step 2: Convert to fraction form
    645,283.70/967,053.65 = 245,706.50/x
  3. Step 3: Cross multiply
    645,283.70x = 967,053.65 × 245,706.50
  4. Step 4: Simplify right side
    645,283.70x = 237,611,367,653.73
  5. Step 5: Solve for x
    x = 237,611,367,653.73/645,283.70
  6. Step 6: Final answer
    x = 368,227.75

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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.