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Finding the Fourth Proportional to 377,091.96, 520,373.61 and 207,324.78

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Solution

The fourth proportional to 377,091.96, 520,373.61 and 207,324.78 is: 286,100.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,091.96 : 520,373.61 = 207,324.78 : x
  2. Step 2: Convert to fraction form
    377,091.96/520,373.61 = 207,324.78/x
  3. Step 3: Cross multiply
    377,091.96x = 520,373.61 × 207,324.78
  4. Step 4: Simplify right side
    377,091.96x = 107,886,344,211.06
  5. Step 5: Solve for x
    x = 107,886,344,211.06/377,091.96
  6. Step 6: Final answer
    x = 286,100.89

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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.