Home / 420,110.20-630,204.54-167,329.72

Finding the Fourth Proportional to 420,110.20, 630,204.54 and 167,329.72

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Solution

The fourth proportional to 420,110.20, 630,204.54 and 167,329.72 is: 251,010.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,110.20 : 630,204.54 = 167,329.72 : x
  2. Step 2: Convert to fraction form
    420,110.20/630,204.54 = 167,329.72/x
  3. Step 3: Cross multiply
    420,110.20x = 630,204.54 × 167,329.72
  4. Step 4: Simplify right side
    420,110.20x = 105,451,949,220.93
  5. Step 5: Solve for x
    x = 105,451,949,220.93/420,110.20
  6. Step 6: Final answer
    x = 251,010.21

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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.