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Finding the Fourth Proportional to 377,211.85, 520,557.51 and 216,066.81

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Solution

The fourth proportional to 377,211.85, 520,557.51 and 216,066.81 is: 298,175.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,211.85 : 520,557.51 = 216,066.81 : x
  2. Step 2: Convert to fraction form
    377,211.85/520,557.51 = 216,066.81/x
  3. Step 3: Cross multiply
    377,211.85x = 520,557.51 × 216,066.81
  4. Step 4: Simplify right side
    377,211.85x = 112,475,200,607.24
  5. Step 5: Solve for x
    x = 112,475,200,607.24/377,211.85
  6. Step 6: Final answer
    x = 298,175.15

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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.