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Finding the Fourth Proportional to 377,550.54, 521,019.45 and 207,784.80

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Solution

The fourth proportional to 377,550.54, 521,019.45 and 207,784.80 is: 286,742.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,550.54 : 521,019.45 = 207,784.80 : x
  2. Step 2: Convert to fraction form
    377,550.54/521,019.45 = 207,784.80/x
  3. Step 3: Cross multiply
    377,550.54x = 521,019.45 × 207,784.80
  4. Step 4: Simplify right side
    377,550.54x = 108,259,922,214.36
  5. Step 5: Solve for x
    x = 108,259,922,214.36/377,550.54
  6. Step 6: Final answer
    x = 286,742.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.