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Finding the Fourth Proportional to 377,285.43, 520,500.24 and 213,907.53

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Solution

The fourth proportional to 377,285.43, 520,500.24 and 213,907.53 is: 295,105.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,285.43 : 520,500.24 = 213,907.53 : x
  2. Step 2: Convert to fraction form
    377,285.43/520,500.24 = 213,907.53/x
  3. Step 3: Cross multiply
    377,285.43x = 520,500.24 × 213,907.53
  4. Step 4: Simplify right side
    377,285.43x = 111,338,920,702.81
  5. Step 5: Solve for x
    x = 111,338,920,702.81/377,285.43
  6. Step 6: Final answer
    x = 295,105.28

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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.