Home / 320,261.85-480,542.22-142,750.35

Finding the Fourth Proportional to 320,261.85, 480,542.22 and 142,750.35

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Solution

The fourth proportional to 320,261.85, 480,542.22 and 142,750.35 is: 214,192.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,261.85 : 480,542.22 = 142,750.35 : x
  2. Step 2: Convert to fraction form
    320,261.85/480,542.22 = 142,750.35/x
  3. Step 3: Cross multiply
    320,261.85x = 480,542.22 × 142,750.35
  4. Step 4: Simplify right side
    320,261.85x = 68,597,570,094.78
  5. Step 5: Solve for x
    x = 68,597,570,094.78/320,261.85
  6. Step 6: Final answer
    x = 214,192.14

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1.5x scale

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.