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Finding the Fourth Proportional to 338,139, 466,665.84 and 187,236

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Solution

The fourth proportional to 338,139, 466,665.84 and 187,236 is: 258,404.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,139 : 466,665.84 = 187,236 : x
  2. Step 2: Convert to fraction form
    338,139/466,665.84 = 187,236/x
  3. Step 3: Cross multiply
    338,139x = 466,665.84 × 187,236
  4. Step 4: Simplify right side
    338,139x = 87,376,645,218.24
  5. Step 5: Solve for x
    x = 87,376,645,218.24/338,139
  6. Step 6: Final answer
    x = 258,404.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.