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Finding the Fourth Proportional to 326,765.90, 490,149.24 and 102,127.51

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Solution

The fourth proportional to 326,765.90, 490,149.24 and 102,127.51 is: 153,191.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,765.90 : 490,149.24 = 102,127.51 : x
  2. Step 2: Convert to fraction form
    326,765.90/490,149.24 = 102,127.51/x
  3. Step 3: Cross multiply
    326,765.90x = 490,149.24 × 102,127.51
  4. Step 4: Simplify right side
    326,765.90x = 50,057,720,898.95
  5. Step 5: Solve for x
    x = 50,057,720,898.95/326,765.90
  6. Step 6: Final answer
    x = 153,191.39

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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.