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Finding the Fourth Proportional to 490,327.80, 735,477.06 and 135,363.48

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Solution

The fourth proportional to 490,327.80, 735,477.06 and 135,363.48 is: 203,041.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,327.80 : 735,477.06 = 135,363.48 : x
  2. Step 2: Convert to fraction form
    490,327.80/735,477.06 = 135,363.48/x
  3. Step 3: Cross multiply
    490,327.80x = 735,477.06 × 135,363.48
  4. Step 4: Simplify right side
    490,327.80x = 99,556,734,301.77
  5. Step 5: Solve for x
    x = 99,556,734,301.77/490,327.80
  6. Step 6: Final answer
    x = 203,041.18

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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.