Home / 645,272.98-967,702.24-212,893.21

Finding the Fourth Proportional to 645,272.98, 967,702.24 and 212,893.21

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Solution

The fourth proportional to 645,272.98, 967,702.24 and 212,893.21 is: 319,271.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,272.98 : 967,702.24 = 212,893.21 : x
  2. Step 2: Convert to fraction form
    645,272.98/967,702.24 = 212,893.21/x
  3. Step 3: Cross multiply
    645,272.98x = 967,702.24 × 212,893.21
  4. Step 4: Simplify right side
    645,272.98x = 206,017,237,673.54
  5. Step 5: Solve for x
    x = 206,017,237,673.54/645,272.98
  6. Step 6: Final answer
    x = 319,271.44

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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.