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Finding the Fourth Proportional to 306,659.25, 460,333.89 and 129,315.42

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Solution

The fourth proportional to 306,659.25, 460,333.89 and 129,315.42 is: 194,118.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,659.25 : 460,333.89 = 129,315.42 : x
  2. Step 2: Convert to fraction form
    306,659.25/460,333.89 = 129,315.42/x
  3. Step 3: Cross multiply
    306,659.25x = 460,333.89 × 129,315.42
  4. Step 4: Simplify right side
    306,659.25x = 59,528,270,325.58
  5. Step 5: Solve for x
    x = 59,528,270,325.58/306,659.25
  6. Step 6: Final answer
    x = 194,118.62

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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.