Home / 280,895.49-387,605.39-166,178.43

Finding the Fourth Proportional to 280,895.49, 387,605.39 and 166,178.43

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Solution

The fourth proportional to 280,895.49, 387,605.39 and 166,178.43 is: 229,308.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,895.49 : 387,605.39 = 166,178.43 : x
  2. Step 2: Convert to fraction form
    280,895.49/387,605.39 = 166,178.43/x
  3. Step 3: Cross multiply
    280,895.49x = 387,605.39 × 166,178.43
  4. Step 4: Simplify right side
    280,895.49x = 64,411,654,338.85
  5. Step 5: Solve for x
    x = 64,411,654,338.85/280,895.49
  6. Step 6: Final answer
    x = 229,308.25

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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.