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Finding the Fourth Proportional to 486,266.09, 729,406.42 and 220,035.29

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Solution

The fourth proportional to 486,266.09, 729,406.42 and 220,035.29 is: 330,056.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,266.09 : 729,406.42 = 220,035.29 : x
  2. Step 2: Convert to fraction form
    486,266.09/729,406.42 = 220,035.29/x
  3. Step 3: Cross multiply
    486,266.09x = 729,406.42 × 220,035.29
  4. Step 4: Simplify right side
    486,266.09x = 160,495,148,955.44
  5. Step 5: Solve for x
    x = 160,495,148,955.44/486,266.09
  6. Step 6: Final answer
    x = 330,056.23

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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.