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Finding the Fourth Proportional to 366,956.85, 550,435.28 and 340,384.80

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Solution

The fourth proportional to 366,956.85, 550,435.28 and 340,384.80 is: 510,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,956.85 : 550,435.28 = 340,384.80 : x
  2. Step 2: Convert to fraction form
    366,956.85/550,435.28 = 340,384.80/x
  3. Step 3: Cross multiply
    366,956.85x = 550,435.28 × 340,384.80
  4. Step 4: Simplify right side
    366,956.85x = 187,359,800,993.82
  5. Step 5: Solve for x
    x = 187,359,800,993.82/366,956.85
  6. Step 6: Final answer
    x = 510,577.20

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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.