Home / 420,236.22-630,209.46-135,853.92

Finding the Fourth Proportional to 420,236.22, 630,209.46 and 135,853.92

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Solution

The fourth proportional to 420,236.22, 630,209.46 and 135,853.92 is: 203,734.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,236.22 : 630,209.46 = 135,853.92 : x
  2. Step 2: Convert to fraction form
    420,236.22/630,209.46 = 135,853.92/x
  3. Step 3: Cross multiply
    420,236.22x = 630,209.46 × 135,853.92
  4. Step 4: Simplify right side
    420,236.22x = 85,616,425,562.08
  5. Step 5: Solve for x
    x = 85,616,425,562.08/420,236.22
  6. Step 6: Final answer
    x = 203,734.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.