Home / 380,051.30-569,720.55-143,552.90

Finding the Fourth Proportional to 380,051.30, 569,720.55 and 143,552.90

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Solution

The fourth proportional to 380,051.30, 569,720.55 and 143,552.90 is: 215,194.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,051.30 : 569,720.55 = 143,552.90 : x
  2. Step 2: Convert to fraction form
    380,051.30/569,720.55 = 143,552.90/x
  3. Step 3: Cross multiply
    380,051.30x = 569,720.55 × 143,552.90
  4. Step 4: Simplify right side
    380,051.30x = 81,785,037,142.10
  5. Step 5: Solve for x
    x = 81,785,037,142.10/380,051.30
  6. Step 6: Final answer
    x = 215,194.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.