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Finding the Fourth Proportional to 340,618.91, 510,988.50 and 140,827.37

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Solution

The fourth proportional to 340,618.91, 510,988.50 and 140,827.37 is: 211,265.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,618.91 : 510,988.50 = 140,827.37 : x
  2. Step 2: Convert to fraction form
    340,618.91/510,988.50 = 140,827.37/x
  3. Step 3: Cross multiply
    340,618.91x = 510,988.50 × 140,827.37
  4. Step 4: Simplify right side
    340,618.91x = 71,961,164,000.30
  5. Step 5: Solve for x
    x = 71,961,164,000.30/340,618.91
  6. Step 6: Final answer
    x = 211,265.91

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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.