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Finding the Fourth Proportional to 366,908.55, 550,362.83 and 260,620.35

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Solution

The fourth proportional to 366,908.55, 550,362.83 and 260,620.35 is: 390,930.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,908.55 : 550,362.83 = 260,620.35 : x
  2. Step 2: Convert to fraction form
    366,908.55/550,362.83 = 260,620.35/x
  3. Step 3: Cross multiply
    366,908.55x = 550,362.83 × 260,620.35
  4. Step 4: Simplify right side
    366,908.55x = 143,435,752,078.49
  5. Step 5: Solve for x
    x = 143,435,752,078.49/366,908.55
  6. Step 6: Final answer
    x = 390,930.53

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1.5x scale

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.