Home / 256,792.08-384,979.38-107,143.89

Finding the Fourth Proportional to 256,792.08, 384,979.38 and 107,143.89

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Solution

The fourth proportional to 256,792.08, 384,979.38 and 107,143.89 is: 160,628.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,792.08 : 384,979.38 = 107,143.89 : x
  2. Step 2: Convert to fraction form
    256,792.08/384,979.38 = 107,143.89/x
  3. Step 3: Cross multiply
    256,792.08x = 384,979.38 × 107,143.89
  4. Step 4: Simplify right side
    256,792.08x = 41,248,188,342.99
  5. Step 5: Solve for x
    x = 41,248,188,342.99/256,792.08
  6. Step 6: Final answer
    x = 160,628.74

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1.5x scale

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.