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Finding the Fourth Proportional to 377,021.36, 520,256.04 and 207,251.84

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Solution

The fourth proportional to 377,021.36, 520,256.04 and 207,251.84 is: 285,989.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,021.36 : 520,256.04 = 207,251.84 : x
  2. Step 2: Convert to fraction form
    377,021.36/520,256.04 = 207,251.84/x
  3. Step 3: Cross multiply
    377,021.36x = 520,256.04 × 207,251.84
  4. Step 4: Simplify right side
    377,021.36x = 107,824,021,561.11
  5. Step 5: Solve for x
    x = 107,824,021,561.11/377,021.36
  6. Step 6: Final answer
    x = 285,989.16

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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.