Home / 280,762.20-387,341.46-173,145.60

Finding the Fourth Proportional to 280,762.20, 387,341.46 and 173,145.60

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Solution

The fourth proportional to 280,762.20, 387,341.46 and 173,145.60 is: 238,872.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,762.20 : 387,341.46 = 173,145.60 : x
  2. Step 2: Convert to fraction form
    280,762.20/387,341.46 = 173,145.60/x
  3. Step 3: Cross multiply
    280,762.20x = 387,341.46 × 173,145.60
  4. Step 4: Simplify right side
    280,762.20x = 67,066,469,496.58
  5. Step 5: Solve for x
    x = 67,066,469,496.58/280,762.20
  6. Step 6: Final answer
    x = 238,872.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.