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Finding the Fourth Proportional to 377,432.86, 520,658.79 and 224,362.18

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Solution

The fourth proportional to 377,432.86, 520,658.79 and 224,362.18 is: 309,501.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,432.86 : 520,658.79 = 224,362.18 : x
  2. Step 2: Convert to fraction form
    377,432.86/520,658.79 = 224,362.18/x
  3. Step 3: Cross multiply
    377,432.86x = 520,658.79 × 224,362.18
  4. Step 4: Simplify right side
    377,432.86x = 116,816,141,160.56
  5. Step 5: Solve for x
    x = 116,816,141,160.56/377,432.86
  6. Step 6: Final answer
    x = 309,501.78

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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.