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Finding the Fourth Proportional to 338,520.72, 507,282.12 and 188,554.56

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Solution

The fourth proportional to 338,520.72, 507,282.12 and 188,554.56 is: 282,553.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,520.72 : 507,282.12 = 188,554.56 : x
  2. Step 2: Convert to fraction form
    338,520.72/507,282.12 = 188,554.56/x
  3. Step 3: Cross multiply
    338,520.72x = 507,282.12 × 188,554.56
  4. Step 4: Simplify right side
    338,520.72x = 95,650,356,932.47
  5. Step 5: Solve for x
    x = 95,650,356,932.47/338,520.72
  6. Step 6: Final answer
    x = 282,553.92

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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.