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Finding the Fourth Proportional to 273,000.35, 378,000.20 and 252,005.15

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Solution

The fourth proportional to 273,000.35, 378,000.20 and 252,005.15 is: 348,929.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,000.35 : 378,000.20 = 252,005.15 : x
  2. Step 2: Convert to fraction form
    273,000.35/378,000.20 = 252,005.15/x
  3. Step 3: Cross multiply
    273,000.35x = 378,000.20 × 252,005.15
  4. Step 4: Simplify right side
    273,000.35x = 95,257,995,841.00
  5. Step 5: Solve for x
    x = 95,257,995,841.00/273,000.35
  6. Step 6: Final answer
    x = 348,929.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.