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Finding the Fourth Proportional to 243,438.49, 335,878.39 and 166,976.51

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Solution

The fourth proportional to 243,438.49, 335,878.39 and 166,976.51 is: 230,381.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,438.49 : 335,878.39 = 166,976.51 : x
  2. Step 2: Convert to fraction form
    243,438.49/335,878.39 = 166,976.51/x
  3. Step 3: Cross multiply
    243,438.49x = 335,878.39 × 166,976.51
  4. Step 4: Simplify right side
    243,438.49x = 56,083,801,346.62
  5. Step 5: Solve for x
    x = 56,083,801,346.62/243,438.49
  6. Step 6: Final answer
    x = 230,381.82

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1.5x scale

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.