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Finding the Fourth Proportional to 377,182.35, 520,511.80 and 207,416.47

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Solution

The fourth proportional to 377,182.35, 520,511.80 and 207,416.47 is: 286,234.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,182.35 : 520,511.80 = 207,416.47 : x
  2. Step 2: Convert to fraction form
    377,182.35/520,511.80 = 207,416.47/x
  3. Step 3: Cross multiply
    377,182.35x = 520,511.80 × 207,416.47
  4. Step 4: Simplify right side
    377,182.35x = 107,962,720,149.35
  5. Step 5: Solve for x
    x = 107,962,720,149.35/377,182.35
  6. Step 6: Final answer
    x = 286,234.81

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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.