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Finding the Fourth Proportional to 377,451.87, 520,711.94 and 224,403.21

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Solution

The fourth proportional to 377,451.87, 520,711.94 and 224,403.21 is: 309,574.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,451.87 : 520,711.94 = 224,403.21 : x
  2. Step 2: Convert to fraction form
    377,451.87/520,711.94 = 224,403.21/x
  3. Step 3: Cross multiply
    377,451.87x = 520,711.94 × 224,403.21
  4. Step 4: Simplify right side
    377,451.87x = 116,849,431,382.34
  5. Step 5: Solve for x
    x = 116,849,431,382.34/377,451.87
  6. Step 6: Final answer
    x = 309,574.39

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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.