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Finding the Fourth Proportional to 486,614.66, 729,991.79 and 149,683.73

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Solution

The fourth proportional to 486,614.66, 729,991.79 and 149,683.73 is: 224,547.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,614.66 : 729,991.79 = 149,683.73 : x
  2. Step 2: Convert to fraction form
    486,614.66/729,991.79 = 149,683.73/x
  3. Step 3: Cross multiply
    486,614.66x = 729,991.79 × 149,683.73
  4. Step 4: Simplify right side
    486,614.66x = 109,267,893,996.58
  5. Step 5: Solve for x
    x = 109,267,893,996.58/486,614.66
  6. Step 6: Final answer
    x = 224,547.07

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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.