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Finding the Fourth Proportional to 377,021.80, 520,291.80 and 207,266.86

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Solution

The fourth proportional to 377,021.80, 520,291.80 and 207,266.86 is: 286,029.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,021.80 : 520,291.80 = 207,266.86 : x
  2. Step 2: Convert to fraction form
    377,021.80/520,291.80 = 207,266.86/x
  3. Step 3: Cross multiply
    377,021.80x = 520,291.80 × 207,266.86
  4. Step 4: Simplify right side
    377,021.80x = 107,839,247,669.75
  5. Step 5: Solve for x
    x = 107,839,247,669.75/377,021.80
  6. Step 6: Final answer
    x = 286,029.21

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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.