Home / 420,126.60-629,779.84-167,331.27

Finding the Fourth Proportional to 420,126.60, 629,779.84 and 167,331.27

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Solution

The fourth proportional to 420,126.60, 629,779.84 and 167,331.27 is: 250,833.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,126.60 : 629,779.84 = 167,331.27 : x
  2. Step 2: Convert to fraction form
    420,126.60/629,779.84 = 167,331.27/x
  3. Step 3: Cross multiply
    420,126.60x = 629,779.84 × 167,331.27
  4. Step 4: Simplify right side
    420,126.60x = 105,381,860,447.60
  5. Step 5: Solve for x
    x = 105,381,860,447.60/420,126.60
  6. Step 6: Final answer
    x = 250,833.58

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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.