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Finding the Fourth Proportional to 366,889.60, 550,334.40 and 340,317.55

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Solution

The fourth proportional to 366,889.60, 550,334.40 and 340,317.55 is: 510,476.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,889.60 : 550,334.40 = 340,317.55 : x
  2. Step 2: Convert to fraction form
    366,889.60/550,334.40 = 340,317.55/x
  3. Step 3: Cross multiply
    366,889.60x = 550,334.40 × 340,317.55
  4. Step 4: Simplify right side
    366,889.60x = 187,288,454,688.72
  5. Step 5: Solve for x
    x = 187,288,454,688.72/366,889.60
  6. Step 6: Final answer
    x = 510,476.33

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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.