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Finding the Fourth Proportional to 214,973.32, 322,505.86 and 72,813.62

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Solution

The fourth proportional to 214,973.32, 322,505.86 and 72,813.62 is: 109,235.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,973.32 : 322,505.86 = 72,813.62 : x
  2. Step 2: Convert to fraction form
    214,973.32/322,505.86 = 72,813.62/x
  3. Step 3: Cross multiply
    214,973.32x = 322,505.86 × 72,813.62
  4. Step 4: Simplify right side
    214,973.32x = 23,482,819,137.81
  5. Step 5: Solve for x
    x = 23,482,819,137.81/214,973.32
  6. Step 6: Final answer
    x = 109,235.97

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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.