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Finding the Fourth Proportional to 377,468.13, 520,920.39 and 216,354.27

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Solution

The fourth proportional to 377,468.13, 520,920.39 and 216,354.27 is: 298,577.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,468.13 : 520,920.39 = 216,354.27 : x
  2. Step 2: Convert to fraction form
    377,468.13/520,920.39 = 216,354.27/x
  3. Step 3: Cross multiply
    377,468.13x = 520,920.39 × 216,354.27
  4. Step 4: Simplify right side
    377,468.13x = 112,703,350,706.57
  5. Step 5: Solve for x
    x = 112,703,350,706.57/377,468.13
  6. Step 6: Final answer
    x = 298,577.13

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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.