Home / 214,907.20-322,247.40-72,703.60

Finding the Fourth Proportional to 214,907.20, 322,247.40 and 72,703.60

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Solution

The fourth proportional to 214,907.20, 322,247.40 and 72,703.60 is: 109,017.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,907.20 : 322,247.40 = 72,703.60 : x
  2. Step 2: Convert to fraction form
    214,907.20/322,247.40 = 72,703.60/x
  3. Step 3: Cross multiply
    214,907.20x = 322,247.40 × 72,703.60
  4. Step 4: Simplify right side
    214,907.20x = 23,428,546,070.64
  5. Step 5: Solve for x
    x = 23,428,546,070.64/214,907.20
  6. Step 6: Final answer
    x = 109,017.04

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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.