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Finding the Fourth Proportional to 377,452.45, 520,712.75 and 224,403.80

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Solution

The fourth proportional to 377,452.45, 520,712.75 and 224,403.80 is: 309,575.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,452.45 : 520,712.75 = 224,403.80 : x
  2. Step 2: Convert to fraction form
    377,452.45/520,712.75 = 224,403.80/x
  3. Step 3: Cross multiply
    377,452.45x = 520,712.75 × 224,403.80
  4. Step 4: Simplify right side
    377,452.45x = 116,849,921,671.24
  5. Step 5: Solve for x
    x = 116,849,921,671.24/377,452.45
  6. Step 6: Final answer
    x = 309,575.21

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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.