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Finding the Fourth Proportional to 536,676.40, 805,042.14 and 137,320.60

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Solution

The fourth proportional to 536,676.40, 805,042.14 and 137,320.60 is: 205,987.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,676.40 : 805,042.14 = 137,320.60 : x
  2. Step 2: Convert to fraction form
    536,676.40/805,042.14 = 137,320.60/x
  3. Step 3: Cross multiply
    536,676.40x = 805,042.14 × 137,320.60
  4. Step 4: Simplify right side
    536,676.40x = 110,548,869,690.08
  5. Step 5: Solve for x
    x = 110,548,869,690.08/536,676.40
  6. Step 6: Final answer
    x = 205,987.95

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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.