Home / 279,630.96-385,555.32-228,454.08

Finding the Fourth Proportional to 279,630.96, 385,555.32 and 228,454.08

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Solution

The fourth proportional to 279,630.96, 385,555.32 and 228,454.08 is: 314,992.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,630.96 : 385,555.32 = 228,454.08 : x
  2. Step 2: Convert to fraction form
    279,630.96/385,555.32 = 228,454.08/x
  3. Step 3: Cross multiply
    279,630.96x = 385,555.32 × 228,454.08
  4. Step 4: Simplify right side
    279,630.96x = 88,081,685,919.71
  5. Step 5: Solve for x
    x = 88,081,685,919.71/279,630.96
  6. Step 6: Final answer
    x = 314,992.61

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1.5x scale

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.