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Finding the Fourth Proportional to 366,908.10, 550,362.15 and 278,334.60

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Solution

The fourth proportional to 366,908.10, 550,362.15 and 278,334.60 is: 417,501.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,908.10 : 550,362.15 = 278,334.60 : x
  2. Step 2: Convert to fraction form
    366,908.10/550,362.15 = 278,334.60/x
  3. Step 3: Cross multiply
    366,908.10x = 550,362.15 × 278,334.60
  4. Step 4: Simplify right side
    366,908.10x = 153,184,828,875.39
  5. Step 5: Solve for x
    x = 153,184,828,875.39/366,908.10
  6. Step 6: Final answer
    x = 417,501.90

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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.