Home / 354,278.46-488,913.39-203,404.62

Finding the Fourth Proportional to 354,278.46, 488,913.39 and 203,404.62

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Solution

The fourth proportional to 354,278.46, 488,913.39 and 203,404.62 is: 280,703.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,278.46 : 488,913.39 = 203,404.62 : x
  2. Step 2: Convert to fraction form
    354,278.46/488,913.39 = 203,404.62/x
  3. Step 3: Cross multiply
    354,278.46x = 488,913.39 × 203,404.62
  4. Step 4: Simplify right side
    354,278.46x = 99,447,242,305.86
  5. Step 5: Solve for x
    x = 99,447,242,305.86/354,278.46
  6. Step 6: Final answer
    x = 280,703.61

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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.