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Finding the Fourth Proportional to 366,904.35, 550,356.53 and 278,330.85

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Solution

The fourth proportional to 366,904.35, 550,356.53 and 278,330.85 is: 417,496.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,904.35 : 550,356.53 = 278,330.85 : x
  2. Step 2: Convert to fraction form
    366,904.35/550,356.53 = 278,330.85/x
  3. Step 3: Cross multiply
    366,904.35x = 550,356.53 × 278,330.85
  4. Step 4: Simplify right side
    366,904.35x = 153,181,199,406.30
  5. Step 5: Solve for x
    x = 153,181,199,406.30/366,904.35
  6. Step 6: Final answer
    x = 417,496.28

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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.