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Finding the Fourth Proportional to 377,306.72, 520,674.72 and 207,537.20

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Solution

The fourth proportional to 377,306.72, 520,674.72 and 207,537.20 is: 286,396.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,306.72 : 520,674.72 = 207,537.20 : x
  2. Step 2: Convert to fraction form
    377,306.72/520,674.72 = 207,537.20/x
  3. Step 3: Cross multiply
    377,306.72x = 520,674.72 × 207,537.20
  4. Step 4: Simplify right side
    377,306.72x = 108,059,373,499.58
  5. Step 5: Solve for x
    x = 108,059,373,499.58/377,306.72
  6. Step 6: Final answer
    x = 286,396.63

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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.