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Finding the Fourth Proportional to 320,358.02, 480,504.27 and 83,670.02

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Solution

The fourth proportional to 320,358.02, 480,504.27 and 83,670.02 is: 125,496.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,358.02 : 480,504.27 = 83,670.02 : x
  2. Step 2: Convert to fraction form
    320,358.02/480,504.27 = 83,670.02/x
  3. Step 3: Cross multiply
    320,358.02x = 480,504.27 × 83,670.02
  4. Step 4: Simplify right side
    320,358.02x = 40,203,801,880.99
  5. Step 5: Solve for x
    x = 40,203,801,880.99/320,358.02
  6. Step 6: Final answer
    x = 125,496.47

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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.