Home / 325,517.40-488,276.10-213,907.50

Finding the Fourth Proportional to 325,517.40, 488,276.10 and 213,907.50

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Solution

The fourth proportional to 325,517.40, 488,276.10 and 213,907.50 is: 320,861.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,517.40 : 488,276.10 = 213,907.50 : x
  2. Step 2: Convert to fraction form
    325,517.40/488,276.10 = 213,907.50/x
  3. Step 3: Cross multiply
    325,517.40x = 488,276.10 × 213,907.50
  4. Step 4: Simplify right side
    325,517.40x = 104,445,919,860.75
  5. Step 5: Solve for x
    x = 104,445,919,860.75/325,517.40
  6. Step 6: Final answer
    x = 320,861.25

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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.