Home / 377,515.65-520,994.07-216,381.14

Finding the Fourth Proportional to 377,515.65, 520,994.07 and 216,381.14

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Solution

The fourth proportional to 377,515.65, 520,994.07 and 216,381.14 is: 298,618.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,515.65 : 520,994.07 = 216,381.14 : x
  2. Step 2: Convert to fraction form
    377,515.65/520,994.07 = 216,381.14/x
  3. Step 3: Cross multiply
    377,515.65x = 520,994.07 × 216,381.14
  4. Step 4: Simplify right side
    377,515.65x = 112,733,288,194.87
  5. Step 5: Solve for x
    x = 112,733,288,194.87/377,515.65
  6. Step 6: Final answer
    x = 298,618.85

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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.