Home / 263,779.45-364,014.39-142,920.70

Finding the Fourth Proportional to 263,779.45, 364,014.39 and 142,920.70

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Solution

The fourth proportional to 263,779.45, 364,014.39 and 142,920.70 is: 197,229.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,779.45 : 364,014.39 = 142,920.70 : x
  2. Step 2: Convert to fraction form
    263,779.45/364,014.39 = 142,920.70/x
  3. Step 3: Cross multiply
    263,779.45x = 364,014.39 × 142,920.70
  4. Step 4: Simplify right side
    263,779.45x = 52,025,191,428.87
  5. Step 5: Solve for x
    x = 52,025,191,428.87/263,779.45
  6. Step 6: Final answer
    x = 197,229.89

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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.