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Finding the Fourth Proportional to 213,644.10, 320,466.15 and 88,968.90

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Solution

The fourth proportional to 213,644.10, 320,466.15 and 88,968.90 is: 133,453.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,644.10 : 320,466.15 = 88,968.90 : x
  2. Step 2: Convert to fraction form
    213,644.10/320,466.15 = 88,968.90/x
  3. Step 3: Cross multiply
    213,644.10x = 320,466.15 × 88,968.90
  4. Step 4: Simplify right side
    213,644.10x = 28,511,520,852.74
  5. Step 5: Solve for x
    x = 28,511,520,852.74/213,644.10
  6. Step 6: Final answer
    x = 133,453.35

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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.