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Finding the Fourth Proportional to 509,274.76, 764,271.10 and 239,415.21

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Solution

The fourth proportional to 509,274.76, 764,271.10 and 239,415.21 is: 359,291.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,274.76 : 764,271.10 = 239,415.21 : x
  2. Step 2: Convert to fraction form
    509,274.76/764,271.10 = 239,415.21/x
  3. Step 3: Cross multiply
    509,274.76x = 764,271.10 × 239,415.21
  4. Step 4: Simplify right side
    509,274.76x = 182,978,125,903.43
  5. Step 5: Solve for x
    x = 182,978,125,903.43/509,274.76
  6. Step 6: Final answer
    x = 359,291.57

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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.