Home / 320,273.85-480,560.22-142,762.35

Finding the Fourth Proportional to 320,273.85, 480,560.22 and 142,762.35

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Solution

The fourth proportional to 320,273.85, 480,560.22 and 142,762.35 is: 214,210.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,273.85 : 480,560.22 = 142,762.35 : x
  2. Step 2: Convert to fraction form
    320,273.85/480,560.22 = 142,762.35/x
  3. Step 3: Cross multiply
    320,273.85x = 480,560.22 × 142,762.35
  4. Step 4: Simplify right side
    320,273.85x = 68,605,906,323.72
  5. Step 5: Solve for x
    x = 68,605,906,323.72/320,273.85
  6. Step 6: Final answer
    x = 214,210.14

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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.