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Finding the Fourth Proportional to 377,642.56, 521,310 and 270,025.60

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Solution

The fourth proportional to 377,642.56, 521,310 and 270,025.60 is: 372,752.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,642.56 : 521,310 = 270,025.60 : x
  2. Step 2: Convert to fraction form
    377,642.56/521,310 = 270,025.60/x
  3. Step 3: Cross multiply
    377,642.56x = 521,310 × 270,025.60
  4. Step 4: Simplify right side
    377,642.56x = 140,767,045,536
  5. Step 5: Solve for x
    x = 140,767,045,536/377,642.56
  6. Step 6: Final answer
    x = 372,752.07

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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.