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Finding the Fourth Proportional to 377,493.89, 520,919.91 and 207,728.01

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Solution

The fourth proportional to 377,493.89, 520,919.91 and 207,728.01 is: 286,652.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,493.89 : 520,919.91 = 207,728.01 : x
  2. Step 2: Convert to fraction form
    377,493.89/520,919.91 = 207,728.01/x
  3. Step 3: Cross multiply
    377,493.89x = 520,919.91 × 207,728.01
  4. Step 4: Simplify right side
    377,493.89x = 108,209,656,273.68
  5. Step 5: Solve for x
    x = 108,209,656,273.68/377,493.89
  6. Step 6: Final answer
    x = 286,652.74

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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.