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Finding the Fourth Proportional to 490,232.30, 735,390.81 and 135,246.32

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Solution

The fourth proportional to 490,232.30, 735,390.81 and 135,246.32 is: 202,881.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,232.30 : 735,390.81 = 135,246.32 : x
  2. Step 2: Convert to fraction form
    490,232.30/735,390.81 = 135,246.32/x
  3. Step 3: Cross multiply
    490,232.30x = 735,390.81 × 135,246.32
  4. Step 4: Simplify right side
    490,232.30x = 99,458,898,290.37
  5. Step 5: Solve for x
    x = 99,458,898,290.37/490,232.30
  6. Step 6: Final answer
    x = 202,881.16

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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.