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Finding the Fourth Proportional to 306,999.43, 460,548.36 and 129,532.59

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Solution

The fourth proportional to 306,999.43, 460,548.36 and 129,532.59 is: 194,319.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,999.43 : 460,548.36 = 129,532.59 : x
  2. Step 2: Convert to fraction form
    306,999.43/460,548.36 = 129,532.59/x
  3. Step 3: Cross multiply
    306,999.43x = 460,548.36 × 129,532.59
  4. Step 4: Simplify right side
    306,999.43x = 59,656,021,891.05
  5. Step 5: Solve for x
    x = 59,656,021,891.05/306,999.43
  6. Step 6: Final answer
    x = 194,319.65

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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.