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Finding the Fourth Proportional to 340,662.52, 510,696.78 and 140,858.20

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Solution

The fourth proportional to 340,662.52, 510,696.78 and 140,858.20 is: 211,164.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,662.52 : 510,696.78 = 140,858.20 : x
  2. Step 2: Convert to fraction form
    340,662.52/510,696.78 = 140,858.20/x
  3. Step 3: Cross multiply
    340,662.52x = 510,696.78 × 140,858.20
  4. Step 4: Simplify right side
    340,662.52x = 71,935,829,176.60
  5. Step 5: Solve for x
    x = 71,935,829,176.60/340,662.52
  6. Step 6: Final answer
    x = 211,164.50

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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.