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Finding the Fourth Proportional to 377,493.12, 520,920.72 and 207,694.80

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Solution

The fourth proportional to 377,493.12, 520,920.72 and 207,694.80 is: 286,607.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,493.12 : 520,920.72 = 207,694.80 : x
  2. Step 2: Convert to fraction form
    377,493.12/520,920.72 = 207,694.80/x
  3. Step 3: Cross multiply
    377,493.12x = 520,920.72 × 207,694.80
  4. Step 4: Simplify right side
    377,493.12x = 108,192,524,756.26
  5. Step 5: Solve for x
    x = 108,192,524,756.26/377,493.12
  6. Step 6: Final answer
    x = 286,607.94

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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.