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Finding the Fourth Proportional to 448,683.18, 672,879.15 and 149,083.31

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Solution

The fourth proportional to 448,683.18, 672,879.15 and 149,083.31 is: 223,576.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,683.18 : 672,879.15 = 149,083.31 : x
  2. Step 2: Convert to fraction form
    448,683.18/672,879.15 = 149,083.31/x
  3. Step 3: Cross multiply
    448,683.18x = 672,879.15 × 149,083.31
  4. Step 4: Simplify right side
    448,683.18x = 100,315,047,547.59
  5. Step 5: Solve for x
    x = 100,315,047,547.59/448,683.18
  6. Step 6: Final answer
    x = 223,576.57

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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.