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Finding the Fourth Proportional to 256,076.30, 384,114.45 and 122,924.45

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Solution

The fourth proportional to 256,076.30, 384,114.45 and 122,924.45 is: 184,386.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,076.30 : 384,114.45 = 122,924.45 : x
  2. Step 2: Convert to fraction form
    256,076.30/384,114.45 = 122,924.45/x
  3. Step 3: Cross multiply
    256,076.30x = 384,114.45 × 122,924.45
  4. Step 4: Simplify right side
    256,076.30x = 47,217,057,503.30
  5. Step 5: Solve for x
    x = 47,217,057,503.30/256,076.30
  6. Step 6: Final answer
    x = 184,386.68

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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.