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Finding the Fourth Proportional to 377,503.19, 520,976.82 and 216,368.65

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Solution

The fourth proportional to 377,503.19, 520,976.82 and 216,368.65 is: 298,601.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,503.19 : 520,976.82 = 216,368.65 : x
  2. Step 2: Convert to fraction form
    377,503.19/520,976.82 = 216,368.65/x
  3. Step 3: Cross multiply
    377,503.19x = 520,976.82 × 216,368.65
  4. Step 4: Simplify right side
    377,503.19x = 112,723,051,224.69
  5. Step 5: Solve for x
    x = 112,723,051,224.69/377,503.19
  6. Step 6: Final answer
    x = 298,601.59

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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.