Home / 377,516.15-520,994.76-216,381.64

Finding the Fourth Proportional to 377,516.15, 520,994.76 and 216,381.64

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Solution

The fourth proportional to 377,516.15, 520,994.76 and 216,381.64 is: 298,619.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,516.15 : 520,994.76 = 216,381.64 : x
  2. Step 2: Convert to fraction form
    377,516.15/520,994.76 = 216,381.64/x
  3. Step 3: Cross multiply
    377,516.15x = 520,994.76 × 216,381.64
  4. Step 4: Simplify right side
    377,516.15x = 112,733,700,600.21
  5. Step 5: Solve for x
    x = 112,733,700,600.21/377,516.15
  6. Step 6: Final answer
    x = 298,619.54

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1.5x scale

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.