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Finding the Fourth Proportional to 354,476.52, 531,559.26 and 132,705

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Solution

The fourth proportional to 354,476.52, 531,559.26 and 132,705 is: 198,999.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,476.52 : 531,559.26 = 132,705 : x
  2. Step 2: Convert to fraction form
    354,476.52/531,559.26 = 132,705/x
  3. Step 3: Cross multiply
    354,476.52x = 531,559.26 × 132,705
  4. Step 4: Simplify right side
    354,476.52x = 70,540,571,598.30
  5. Step 5: Solve for x
    x = 70,540,571,598.30/354,476.52
  6. Step 6: Final answer
    x = 198,999.28

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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.