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Finding the Fourth Proportional to 377,622.86, 520,854.14 and 248,520.20

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Solution

The fourth proportional to 377,622.86, 520,854.14 and 248,520.20 is: 342,783.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,622.86 : 520,854.14 = 248,520.20 : x
  2. Step 2: Convert to fraction form
    377,622.86/520,854.14 = 248,520.20/x
  3. Step 3: Cross multiply
    377,622.86x = 520,854.14 × 248,520.20
  4. Step 4: Simplify right side
    377,622.86x = 129,442,775,043.63
  5. Step 5: Solve for x
    x = 129,442,775,043.63/377,622.86
  6. Step 6: Final answer
    x = 342,783.21

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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.