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Finding the Fourth Proportional to 509,696.02, 764,636.22 and 210,009.90

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Solution

The fourth proportional to 509,696.02, 764,636.22 and 210,009.90 is: 315,052.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,696.02 : 764,636.22 = 210,009.90 : x
  2. Step 2: Convert to fraction form
    509,696.02/764,636.22 = 210,009.90/x
  3. Step 3: Cross multiply
    509,696.02x = 764,636.22 × 210,009.90
  4. Step 4: Simplify right side
    509,696.02x = 160,581,176,098.58
  5. Step 5: Solve for x
    x = 160,581,176,098.58/509,696.02
  6. Step 6: Final answer
    x = 315,052.84

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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.