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Finding the Fourth Proportional to 377,351.69, 520,745.36 and 216,300.15

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Solution

The fourth proportional to 377,351.69, 520,745.36 and 216,300.15 is: 298,494.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,351.69 : 520,745.36 = 216,300.15 : x
  2. Step 2: Convert to fraction form
    377,351.69/520,745.36 = 216,300.15/x
  3. Step 3: Cross multiply
    377,351.69x = 520,745.36 × 216,300.15
  4. Step 4: Simplify right side
    377,351.69x = 112,637,298,398.30
  5. Step 5: Solve for x
    x = 112,637,298,398.30/377,351.69
  6. Step 6: Final answer
    x = 298,494.22

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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.