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Finding the Fourth Proportional to 377,580.96, 521,049.78 and 207,814.68

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Solution

The fourth proportional to 377,580.96, 521,049.78 and 207,814.68 is: 286,777.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,580.96 : 521,049.78 = 207,814.68 : x
  2. Step 2: Convert to fraction form
    377,580.96/521,049.78 = 207,814.68/x
  3. Step 3: Cross multiply
    377,580.96x = 521,049.78 × 207,814.68
  4. Step 4: Simplify right side
    377,580.96x = 108,281,793,294.77
  5. Step 5: Solve for x
    x = 108,281,793,294.77/377,580.96
  6. Step 6: Final answer
    x = 286,777.68

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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.