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Finding the Fourth Proportional to 253,951.15, 381,005.70 and 104,203.62

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Solution

The fourth proportional to 253,951.15, 381,005.70 and 104,203.62 is: 156,337.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,951.15 : 381,005.70 = 104,203.62 : x
  2. Step 2: Convert to fraction form
    253,951.15/381,005.70 = 104,203.62/x
  3. Step 3: Cross multiply
    253,951.15x = 381,005.70 × 104,203.62
  4. Step 4: Simplify right side
    253,951.15x = 39,702,173,180.63
  5. Step 5: Solve for x
    x = 39,702,173,180.63/253,951.15
  6. Step 6: Final answer
    x = 156,337.84

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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.