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Finding the Fourth Proportional to 340,412.72, 510,694.91 and 103,773.83

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Solution

The fourth proportional to 340,412.72, 510,694.91 and 103,773.83 is: 155,683.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,412.72 : 510,694.91 = 103,773.83 : x
  2. Step 2: Convert to fraction form
    340,412.72/510,694.91 = 103,773.83/x
  3. Step 3: Cross multiply
    340,412.72x = 510,694.91 × 103,773.83
  4. Step 4: Simplify right side
    340,412.72x = 52,996,766,772.21
  5. Step 5: Solve for x
    x = 52,996,766,772.21/340,412.72
  6. Step 6: Final answer
    x = 155,683.86

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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.