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Finding the Fourth Proportional to 340,224.30, 510,391.40 and 103,511.25

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Solution

The fourth proportional to 340,224.30, 510,391.40 and 103,511.25 is: 155,283.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,224.30 : 510,391.40 = 103,511.25 : x
  2. Step 2: Convert to fraction form
    340,224.30/510,391.40 = 103,511.25/x
  3. Step 3: Cross multiply
    340,224.30x = 510,391.40 × 103,511.25
  4. Step 4: Simplify right side
    340,224.30x = 52,831,251,285.69
  5. Step 5: Solve for x
    x = 52,831,251,285.69/340,224.30
  6. Step 6: Final answer
    x = 155,283.59

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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.