Home / 377,014.86-520,280.55-215,923.32

Finding the Fourth Proportional to 377,014.86, 520,280.55 and 215,923.32

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Solution

The fourth proportional to 377,014.86, 520,280.55 and 215,923.32 is: 297,974.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,014.86 : 520,280.55 = 215,923.32 : x
  2. Step 2: Convert to fraction form
    377,014.86/520,280.55 = 215,923.32/x
  3. Step 3: Cross multiply
    377,014.86x = 520,280.55 × 215,923.32
  4. Step 4: Simplify right side
    377,014.86x = 112,340,703,687.43
  5. Step 5: Solve for x
    x = 112,340,703,687.43/377,014.86
  6. Step 6: Final answer
    x = 297,974.21

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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.