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Finding the Fourth Proportional to 536,721.66, 805,081.82 and 137,362.64

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Solution

The fourth proportional to 536,721.66, 805,081.82 and 137,362.64 is: 206,043.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,721.66 : 805,081.82 = 137,362.64 : x
  2. Step 2: Convert to fraction form
    536,721.66/805,081.82 = 137,362.64/x
  3. Step 3: Cross multiply
    536,721.66x = 805,081.82 × 137,362.64
  4. Step 4: Simplify right side
    536,721.66x = 110,588,159,498.98
  5. Step 5: Solve for x
    x = 110,588,159,498.98/536,721.66
  6. Step 6: Final answer
    x = 206,043.78

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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.