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Finding the Fourth Proportional to 377,379, 520,783.02 and 207,609.48

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Solution

The fourth proportional to 377,379, 520,783.02 and 207,609.48 is: 286,501.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,379 : 520,783.02 = 207,609.48 : x
  2. Step 2: Convert to fraction form
    377,379/520,783.02 = 207,609.48/x
  3. Step 3: Cross multiply
    377,379x = 520,783.02 × 207,609.48
  4. Step 4: Simplify right side
    377,379x = 108,119,491,975.03
  5. Step 5: Solve for x
    x = 108,119,491,975.03/377,379
  6. Step 6: Final answer
    x = 286,501.08

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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.