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Finding the Fourth Proportional to 256,087.54, 383,941.08 and 122,840.92

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Solution

The fourth proportional to 256,087.54, 383,941.08 and 122,840.92 is: 184,170.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,087.54 : 383,941.08 = 122,840.92 : x
  2. Step 2: Convert to fraction form
    256,087.54/383,941.08 = 122,840.92/x
  3. Step 3: Cross multiply
    256,087.54x = 383,941.08 × 122,840.92
  4. Step 4: Simplify right side
    256,087.54x = 47,163,675,492.99
  5. Step 5: Solve for x
    x = 47,163,675,492.99/256,087.54
  6. Step 6: Final answer
    x = 184,170.13

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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.