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Finding the Fourth Proportional to 297,006.80, 445,462.80 and 86,595.52

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Solution

The fourth proportional to 297,006.80, 445,462.80 and 86,595.52 is: 129,879.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,006.80 : 445,462.80 = 86,595.52 : x
  2. Step 2: Convert to fraction form
    297,006.80/445,462.80 = 86,595.52/x
  3. Step 3: Cross multiply
    297,006.80x = 445,462.80 × 86,595.52
  4. Step 4: Simplify right side
    297,006.80x = 38,575,082,806.66
  5. Step 5: Solve for x
    x = 38,575,082,806.66/297,006.80
  6. Step 6: Final answer
    x = 129,879.46

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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.