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Finding the Fourth Proportional to 273,529.15, 409,948.60 and 138,627.12

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Solution

The fourth proportional to 273,529.15, 409,948.60 and 138,627.12 is: 207,765.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,529.15 : 409,948.60 = 138,627.12 : x
  2. Step 2: Convert to fraction form
    273,529.15/409,948.60 = 138,627.12/x
  3. Step 3: Cross multiply
    273,529.15x = 409,948.60 × 138,627.12
  4. Step 4: Simplify right side
    273,529.15x = 56,829,994,453.61
  5. Step 5: Solve for x
    x = 56,829,994,453.61/273,529.15
  6. Step 6: Final answer
    x = 207,765.77

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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.