Home / 281,966.62-389,138.55-154,666.82

Finding the Fourth Proportional to 281,966.62, 389,138.55 and 154,666.82

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Solution

The fourth proportional to 281,966.62, 389,138.55 and 154,666.82 is: 213,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,966.62 : 389,138.55 = 154,666.82 : x
  2. Step 2: Convert to fraction form
    281,966.62/389,138.55 = 154,666.82/x
  3. Step 3: Cross multiply
    281,966.62x = 389,138.55 × 154,666.82
  4. Step 4: Simplify right side
    281,966.62x = 60,186,819,348.88
  5. Step 5: Solve for x
    x = 60,186,819,348.88/281,966.62
  6. Step 6: Final answer
    x = 213,453.70

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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.