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Finding the Fourth Proportional to 329,610.87, 494,528.36 and 140,063.58

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Solution

The fourth proportional to 329,610.87, 494,528.36 and 140,063.58 is: 210,142.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,610.87 : 494,528.36 = 140,063.58 : x
  2. Step 2: Convert to fraction form
    329,610.87/494,528.36 = 140,063.58/x
  3. Step 3: Cross multiply
    329,610.87x = 494,528.36 × 140,063.58
  4. Step 4: Simplify right side
    329,610.87x = 69,265,411,812.81
  5. Step 5: Solve for x
    x = 69,265,411,812.81/329,610.87
  6. Step 6: Final answer
    x = 210,142.98

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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.