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Finding the Fourth Proportional to 493,800.29, 740,700.45 and 138,814.34

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Solution

The fourth proportional to 493,800.29, 740,700.45 and 138,814.34 is: 208,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,800.29 : 740,700.45 = 138,814.34 : x
  2. Step 2: Convert to fraction form
    493,800.29/740,700.45 = 138,814.34/x
  3. Step 3: Cross multiply
    493,800.29x = 740,700.45 × 138,814.34
  4. Step 4: Simplify right side
    493,800.29x = 102,819,844,104.45
  5. Step 5: Solve for x
    x = 102,819,844,104.45/493,800.29
  6. Step 6: Final answer
    x = 208,221.52

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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.