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Finding the Fourth Proportional to 326,779.84, 490,200.06 and 127,115.44

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Solution

The fourth proportional to 326,779.84, 490,200.06 and 127,115.44 is: 190,684.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,779.84 : 490,200.06 = 127,115.44 : x
  2. Step 2: Convert to fraction form
    326,779.84/490,200.06 = 127,115.44/x
  3. Step 3: Cross multiply
    326,779.84x = 490,200.06 × 127,115.44
  4. Step 4: Simplify right side
    326,779.84x = 62,311,996,314.93
  5. Step 5: Solve for x
    x = 62,311,996,314.93/326,779.84
  6. Step 6: Final answer
    x = 190,684.95

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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.