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Finding the Fourth Proportional to 338,550.84, 507,842.46 and 279,276.66

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Solution

The fourth proportional to 338,550.84, 507,842.46 and 279,276.66 is: 418,928.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,550.84 : 507,842.46 = 279,276.66 : x
  2. Step 2: Convert to fraction form
    338,550.84/507,842.46 = 279,276.66/x
  3. Step 3: Cross multiply
    338,550.84x = 507,842.46 × 279,276.66
  4. Step 4: Simplify right side
    338,550.84x = 141,828,546,034.98
  5. Step 5: Solve for x
    x = 141,828,546,034.98/338,550.84
  6. Step 6: Final answer
    x = 418,928.35

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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.