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Finding the Fourth Proportional to 307,351.41, 460,916.28 and 129,872.18

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Solution

The fourth proportional to 307,351.41, 460,916.28 and 129,872.18 is: 194,761.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,351.41 : 460,916.28 = 129,872.18 : x
  2. Step 2: Convert to fraction form
    307,351.41/460,916.28 = 129,872.18/x
  3. Step 3: Cross multiply
    307,351.41x = 460,916.28 × 129,872.18
  4. Step 4: Simplify right side
    307,351.41x = 59,860,199,776.51
  5. Step 5: Solve for x
    x = 59,860,199,776.51/307,351.41
  6. Step 6: Final answer
    x = 194,761.43

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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.