Home / 353,867.28-488,350.67-200,919.72

Finding the Fourth Proportional to 353,867.28, 488,350.67 and 200,919.72

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Solution

The fourth proportional to 353,867.28, 488,350.67 and 200,919.72 is: 277,277.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,867.28 : 488,350.67 = 200,919.72 : x
  2. Step 2: Convert to fraction form
    353,867.28/488,350.67 = 200,919.72/x
  3. Step 3: Cross multiply
    353,867.28x = 488,350.67 × 200,919.72
  4. Step 4: Simplify right side
    353,867.28x = 98,119,277,714.64
  5. Step 5: Solve for x
    x = 98,119,277,714.64/353,867.28
  6. Step 6: Final answer
    x = 277,277.05

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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.