Home / 275,631.42-380,410.68-154,780.93

Finding the Fourth Proportional to 275,631.42, 380,410.68 and 154,780.93

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Solution

The fourth proportional to 275,631.42, 380,410.68 and 154,780.93 is: 213,619.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,631.42 : 380,410.68 = 154,780.93 : x
  2. Step 2: Convert to fraction form
    275,631.42/380,410.68 = 154,780.93/x
  3. Step 3: Cross multiply
    275,631.42x = 380,410.68 × 154,780.93
  4. Step 4: Simplify right side
    275,631.42x = 58,880,318,832.33
  5. Step 5: Solve for x
    x = 58,880,318,832.33/275,631.42
  6. Step 6: Final answer
    x = 213,619.76

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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.