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Finding the Fourth Proportional to 377,447.88, 520,878 and 207,682.02

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Solution

The fourth proportional to 377,447.88, 520,878 and 207,682.02 is: 286,601.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,447.88 : 520,878 = 207,682.02 : x
  2. Step 2: Convert to fraction form
    377,447.88/520,878 = 207,682.02/x
  3. Step 3: Cross multiply
    377,447.88x = 520,878 × 207,682.02
  4. Step 4: Simplify right side
    377,447.88x = 108,176,995,213.56
  5. Step 5: Solve for x
    x = 108,176,995,213.56/377,447.88
  6. Step 6: Final answer
    x = 286,601.15

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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.