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Finding the Fourth Proportional to 493,816.77, 740,768.90 and 138,833.87

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Solution

The fourth proportional to 493,816.77, 740,768.90 and 138,833.87 is: 208,263.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,816.77 : 740,768.90 = 138,833.87 : x
  2. Step 2: Convert to fraction form
    493,816.77/740,768.90 = 138,833.87/x
  3. Step 3: Cross multiply
    493,816.77x = 740,768.90 × 138,833.87
  4. Step 4: Simplify right side
    493,816.77x = 102,843,808,764.63
  5. Step 5: Solve for x
    x = 102,843,808,764.63/493,816.77
  6. Step 6: Final answer
    x = 208,263.09

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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.