Home / 256,665.27-384,677.13-123,509.79

Finding the Fourth Proportional to 256,665.27, 384,677.13 and 123,509.79

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Solution

The fourth proportional to 256,665.27, 384,677.13 and 123,509.79 is: 185,110.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,665.27 : 384,677.13 = 123,509.79 : x
  2. Step 2: Convert to fraction form
    256,665.27/384,677.13 = 123,509.79/x
  3. Step 3: Cross multiply
    256,665.27x = 384,677.13 × 123,509.79
  4. Step 4: Simplify right side
    256,665.27x = 47,511,391,544.10
  5. Step 5: Solve for x
    x = 47,511,391,544.10/256,665.27
  6. Step 6: Final answer
    x = 185,110.32

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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.