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Finding the Fourth Proportional to 214,341.04, 321,396.51 and 72,138.88

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Solution

The fourth proportional to 214,341.04, 321,396.51 and 72,138.88 is: 108,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,341.04 : 321,396.51 = 72,138.88 : x
  2. Step 2: Convert to fraction form
    214,341.04/321,396.51 = 72,138.88/x
  3. Step 3: Cross multiply
    214,341.04x = 321,396.51 × 72,138.88
  4. Step 4: Simplify right side
    214,341.04x = 23,185,183,629.87
  5. Step 5: Solve for x
    x = 23,185,183,629.87/214,341.04
  6. Step 6: Final answer
    x = 108,169.60

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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.