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Finding the Fourth Proportional to 253,035.20, 379,115.40 and 119,628.20

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Solution

The fourth proportional to 253,035.20, 379,115.40 and 119,628.20 is: 179,235.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,035.20 : 379,115.40 = 119,628.20 : x
  2. Step 2: Convert to fraction form
    253,035.20/379,115.40 = 119,628.20/x
  3. Step 3: Cross multiply
    253,035.20x = 379,115.40 × 119,628.20
  4. Step 4: Simplify right side
    253,035.20x = 45,352,892,894.28
  5. Step 5: Solve for x
    x = 45,352,892,894.28/253,035.20
  6. Step 6: Final answer
    x = 179,235.51

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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.