Home / 221,475.90-305,530.47-144,961.32

Finding the Fourth Proportional to 221,475.90, 305,530.47 and 144,961.32

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Solution

The fourth proportional to 221,475.90, 305,530.47 and 144,961.32 is: 199,977.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,475.90 : 305,530.47 = 144,961.32 : x
  2. Step 2: Convert to fraction form
    221,475.90/305,530.47 = 144,961.32/x
  3. Step 3: Cross multiply
    221,475.90x = 305,530.47 × 144,961.32
  4. Step 4: Simplify right side
    221,475.90x = 44,290,100,231.42
  5. Step 5: Solve for x
    x = 44,290,100,231.42/221,475.90
  6. Step 6: Final answer
    x = 199,977.06

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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.