Home / 356,435.15-491,861.70-203,467.25

Finding the Fourth Proportional to 356,435.15, 491,861.70 and 203,467.25

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Solution

The fourth proportional to 356,435.15, 491,861.70 and 203,467.25 is: 280,774.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,435.15 : 491,861.70 = 203,467.25 : x
  2. Step 2: Convert to fraction form
    356,435.15/491,861.70 = 203,467.25/x
  3. Step 3: Cross multiply
    356,435.15x = 491,861.70 × 203,467.25
  4. Step 4: Simplify right side
    356,435.15x = 100,077,748,708.98
  5. Step 5: Solve for x
    x = 100,077,748,708.98/356,435.15
  6. Step 6: Final answer
    x = 280,774.08

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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.