Home / 291,920.04-438,074.81-102,380.24

Finding the Fourth Proportional to 291,920.04, 438,074.81 and 102,380.24

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Solution

The fourth proportional to 291,920.04, 438,074.81 and 102,380.24 is: 153,638.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,920.04 : 438,074.81 = 102,380.24 : x
  2. Step 2: Convert to fraction form
    291,920.04/438,074.81 = 102,380.24/x
  3. Step 3: Cross multiply
    291,920.04x = 438,074.81 × 102,380.24
  4. Step 4: Simplify right side
    291,920.04x = 44,850,204,185.75
  5. Step 5: Solve for x
    x = 44,850,204,185.75/291,920.04
  6. Step 6: Final answer
    x = 153,638.66

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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.