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Finding the Fourth Proportional to 377,640.56, 521,307.24 and 270,023.60

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Solution

The fourth proportional to 377,640.56, 521,307.24 and 270,023.60 is: 372,749.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,640.56 : 521,307.24 = 270,023.60 : x
  2. Step 2: Convert to fraction form
    377,640.56/521,307.24 = 270,023.60/x
  3. Step 3: Cross multiply
    377,640.56x = 521,307.24 × 270,023.60
  4. Step 4: Simplify right side
    377,640.56x = 140,765,257,650.86
  5. Step 5: Solve for x
    x = 140,765,257,650.86/377,640.56
  6. Step 6: Final answer
    x = 372,749.31

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1.5x scale

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.