Home / 256,719.74-384,915.59-123,334.61

Finding the Fourth Proportional to 256,719.74, 384,915.59 and 123,334.61

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Solution

The fourth proportional to 256,719.74, 384,915.59 and 123,334.61 is: 184,923.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,719.74 : 384,915.59 = 123,334.61 : x
  2. Step 2: Convert to fraction form
    256,719.74/384,915.59 = 123,334.61/x
  3. Step 3: Cross multiply
    256,719.74x = 384,915.59 × 123,334.61
  4. Step 4: Simplify right side
    256,719.74x = 47,473,413,558.90
  5. Step 5: Solve for x
    x = 47,473,413,558.90/256,719.74
  6. Step 6: Final answer
    x = 184,923.11

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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.