Home / 490,270.20-735,317.76-130,443.12

Finding the Fourth Proportional to 490,270.20, 735,317.76 and 130,443.12

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Solution

The fourth proportional to 490,270.20, 735,317.76 and 130,443.12 is: 195,641.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,270.20 : 735,317.76 = 130,443.12 : x
  2. Step 2: Convert to fraction form
    490,270.20/735,317.76 = 130,443.12/x
  3. Step 3: Cross multiply
    490,270.20x = 735,317.76 × 130,443.12
  4. Step 4: Simplify right side
    490,270.20x = 95,917,142,805.81
  5. Step 5: Solve for x
    x = 95,917,142,805.81/490,270.20
  6. Step 6: Final answer
    x = 195,641.39

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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.