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Finding the Fourth Proportional to 490,745.73, 736,118.76 and 153,812.52

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Solution

The fourth proportional to 490,745.73, 736,118.76 and 153,812.52 is: 230,718.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,745.73 : 736,118.76 = 153,812.52 : x
  2. Step 2: Convert to fraction form
    490,745.73/736,118.76 = 153,812.52/x
  3. Step 3: Cross multiply
    490,745.73x = 736,118.76 × 153,812.52
  4. Step 4: Simplify right side
    490,745.73x = 113,224,281,494.88
  5. Step 5: Solve for x
    x = 113,224,281,494.88/490,745.73
  6. Step 6: Final answer
    x = 230,718.83

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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.