Home / 377,619.36-520,849.36-248,516.72

Finding the Fourth Proportional to 377,619.36, 520,849.36 and 248,516.72

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Solution

The fourth proportional to 377,619.36, 520,849.36 and 248,516.72 is: 342,778.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,619.36 : 520,849.36 = 248,516.72 : x
  2. Step 2: Convert to fraction form
    377,619.36/520,849.36 = 248,516.72/x
  3. Step 3: Cross multiply
    377,619.36x = 520,849.36 × 248,516.72
  4. Step 4: Simplify right side
    377,619.36x = 129,439,774,561.30
  5. Step 5: Solve for x
    x = 129,439,774,561.30/377,619.36
  6. Step 6: Final answer
    x = 342,778.44

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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.