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Finding the Fourth Proportional to 340,299.28, 510,495.62 and 115,599.40

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Solution

The fourth proportional to 340,299.28, 510,495.62 and 115,599.40 is: 173,414.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,299.28 : 510,495.62 = 115,599.40 : x
  2. Step 2: Convert to fraction form
    340,299.28/510,495.62 = 115,599.40/x
  3. Step 3: Cross multiply
    340,299.28x = 510,495.62 × 115,599.40
  4. Step 4: Simplify right side
    340,299.28x = 59,012,987,374.63
  5. Step 5: Solve for x
    x = 59,012,987,374.63/340,299.28
  6. Step 6: Final answer
    x = 173,414.96

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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.