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Finding the Fourth Proportional to 377,266.75, 520,364.49 and 256,197.87

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Solution

The fourth proportional to 377,266.75, 520,364.49 and 256,197.87 is: 353,374.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,266.75 : 520,364.49 = 256,197.87 : x
  2. Step 2: Convert to fraction form
    377,266.75/520,364.49 = 256,197.87/x
  3. Step 3: Cross multiply
    377,266.75x = 520,364.49 × 256,197.87
  4. Step 4: Simplify right side
    377,266.75x = 133,316,273,000.89
  5. Step 5: Solve for x
    x = 133,316,273,000.89/377,266.75
  6. Step 6: Final answer
    x = 353,374.04

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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.