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Finding the Fourth Proportional to 275,819.32, 380,510.70 and 173,782.84

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Solution

The fourth proportional to 275,819.32, 380,510.70 and 173,782.84 is: 239,744.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,819.32 : 380,510.70 = 173,782.84 : x
  2. Step 2: Convert to fraction form
    275,819.32/380,510.70 = 173,782.84/x
  3. Step 3: Cross multiply
    275,819.32x = 380,510.70 × 173,782.84
  4. Step 4: Simplify right side
    275,819.32x = 66,126,230,096.39
  5. Step 5: Solve for x
    x = 66,126,230,096.39/275,819.32
  6. Step 6: Final answer
    x = 239,744.74

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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.