Home / 377,913.20-521,520.12-208,147.32

Finding the Fourth Proportional to 377,913.20, 521,520.12 and 208,147.32

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Solution

The fourth proportional to 377,913.20, 521,520.12 and 208,147.32 is: 287,243.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,913.20 : 521,520.12 = 208,147.32 : x
  2. Step 2: Convert to fraction form
    377,913.20/521,520.12 = 208,147.32/x
  3. Step 3: Cross multiply
    377,913.20x = 521,520.12 × 208,147.32
  4. Step 4: Simplify right side
    377,913.20x = 108,553,015,304.08
  5. Step 5: Solve for x
    x = 108,553,015,304.08/377,913.20
  6. Step 6: Final answer
    x = 287,243.25

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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.