Home / 275,813.10-380,598.75-154,944.90

Finding the Fourth Proportional to 275,813.10, 380,598.75 and 154,944.90

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Solution

The fourth proportional to 275,813.10, 380,598.75 and 154,944.90 is: 213,810.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,813.10 : 380,598.75 = 154,944.90 : x
  2. Step 2: Convert to fraction form
    275,813.10/380,598.75 = 154,944.90/x
  3. Step 3: Cross multiply
    275,813.10x = 380,598.75 × 154,944.90
  4. Step 4: Simplify right side
    275,813.10x = 58,971,835,258.88
  5. Step 5: Solve for x
    x = 58,971,835,258.88/275,813.10
  6. Step 6: Final answer
    x = 213,810.86

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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.