Home / 377,516.32-566,278.96-128,217.76

Finding the Fourth Proportional to 377,516.32, 566,278.96 and 128,217.76

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Solution

The fourth proportional to 377,516.32, 566,278.96 and 128,217.76 is: 192,328.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,516.32 : 566,278.96 = 128,217.76 : x
  2. Step 2: Convert to fraction form
    377,516.32/566,278.96 = 128,217.76/x
  3. Step 3: Cross multiply
    377,516.32x = 566,278.96 × 128,217.76
  4. Step 4: Simplify right side
    377,516.32x = 72,607,019,786.33
  5. Step 5: Solve for x
    x = 72,607,019,786.33/377,516.32
  6. Step 6: Final answer
    x = 192,328.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.