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Finding the Fourth Proportional to 366,913.40, 550,311 and 100,612.08

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Solution

The fourth proportional to 366,913.40, 550,311 and 100,612.08 is: 150,901.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,913.40 : 550,311 = 100,612.08 : x
  2. Step 2: Convert to fraction form
    366,913.40/550,311 = 100,612.08/x
  3. Step 3: Cross multiply
    366,913.40x = 550,311 × 100,612.08
  4. Step 4: Simplify right side
    366,913.40x = 55,367,934,356.88
  5. Step 5: Solve for x
    x = 55,367,934,356.88/366,913.40
  6. Step 6: Final answer
    x = 150,901.91

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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.