Home / 280,929.55-387,788.21-184,139.64

Finding the Fourth Proportional to 280,929.55, 387,788.21 and 184,139.64

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Solution

The fourth proportional to 280,929.55, 387,788.21 and 184,139.64 is: 254,181.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,929.55 : 387,788.21 = 184,139.64 : x
  2. Step 2: Convert to fraction form
    280,929.55/387,788.21 = 184,139.64/x
  3. Step 3: Cross multiply
    280,929.55x = 387,788.21 × 184,139.64
  4. Step 4: Simplify right side
    280,929.55x = 71,407,180,464.95
  5. Step 5: Solve for x
    x = 71,407,180,464.95/280,929.55
  6. Step 6: Final answer
    x = 254,181.81

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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.