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Finding the Fourth Proportional to 220,926.96, 304,870.80 and 135,029.64

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Solution

The fourth proportional to 220,926.96, 304,870.80 and 135,029.64 is: 186,335.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,926.96 : 304,870.80 = 135,029.64 : x
  2. Step 2: Convert to fraction form
    220,926.96/304,870.80 = 135,029.64/x
  3. Step 3: Cross multiply
    220,926.96x = 304,870.80 × 135,029.64
  4. Step 4: Simplify right side
    220,926.96x = 41,166,594,370.51
  5. Step 5: Solve for x
    x = 41,166,594,370.51/220,926.96
  6. Step 6: Final answer
    x = 186,335.77

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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.