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Finding the Fourth Proportional to 320,881.22, 442,862.42 and 184,889.12

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Solution

The fourth proportional to 320,881.22, 442,862.42 and 184,889.12 is: 255,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,881.22 : 442,862.42 = 184,889.12 : x
  2. Step 2: Convert to fraction form
    320,881.22/442,862.42 = 184,889.12/x
  3. Step 3: Cross multiply
    320,881.22x = 442,862.42 × 184,889.12
  4. Step 4: Simplify right side
    320,881.22x = 81,880,443,114.87
  5. Step 5: Solve for x
    x = 81,880,443,114.87/320,881.22
  6. Step 6: Final answer
    x = 255,173.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.