Home / 256,529.06-384,876.58-123,391.92

Finding the Fourth Proportional to 256,529.06, 384,876.58 and 123,391.92

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Solution

The fourth proportional to 256,529.06, 384,876.58 and 123,391.92 is: 185,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,529.06 : 384,876.58 = 123,391.92 : x
  2. Step 2: Convert to fraction form
    256,529.06/384,876.58 = 123,391.92/x
  3. Step 3: Cross multiply
    256,529.06x = 384,876.58 × 123,391.92
  4. Step 4: Simplify right side
    256,529.06x = 47,490,661,535.40
  5. Step 5: Solve for x
    x = 47,490,661,535.40/256,529.06
  6. Step 6: Final answer
    x = 185,127.80

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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.