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Finding the Fourth Proportional to 275,499.37, 380,215.15 and 160,768.74

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Solution

The fourth proportional to 275,499.37, 380,215.15 and 160,768.74 is: 221,876.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,499.37 : 380,215.15 = 160,768.74 : x
  2. Step 2: Convert to fraction form
    275,499.37/380,215.15 = 160,768.74/x
  3. Step 3: Cross multiply
    275,499.37x = 380,215.15 × 160,768.74
  4. Step 4: Simplify right side
    275,499.37x = 61,126,710,594.41
  5. Step 5: Solve for x
    x = 61,126,710,594.41/275,499.37
  6. Step 6: Final answer
    x = 221,876.04

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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.