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Finding the Fourth Proportional to 240,064, 331,288.32 and 134,080

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Solution

The fourth proportional to 240,064, 331,288.32 and 134,080 is: 185,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,064 : 331,288.32 = 134,080 : x
  2. Step 2: Convert to fraction form
    240,064/331,288.32 = 134,080/x
  3. Step 3: Cross multiply
    240,064x = 331,288.32 × 134,080
  4. Step 4: Simplify right side
    240,064x = 44,419,137,945.60
  5. Step 5: Solve for x
    x = 44,419,137,945.60/240,064
  6. Step 6: Final answer
    x = 185,030.40

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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.