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Finding the Fourth Proportional to 490,860.60, 736,208.88 and 135,910.50

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Solution

The fourth proportional to 490,860.60, 736,208.88 and 135,910.50 is: 203,843.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,860.60 : 736,208.88 = 135,910.50 : x
  2. Step 2: Convert to fraction form
    490,860.60/736,208.88 = 135,910.50/x
  3. Step 3: Cross multiply
    490,860.60x = 736,208.88 × 135,910.50
  4. Step 4: Simplify right side
    490,860.60x = 100,058,516,985.24
  5. Step 5: Solve for x
    x = 100,058,516,985.24/490,860.60
  6. Step 6: Final answer
    x = 203,843.04

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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.